diff --git a/package-lock.json b/package-lock.json
index 3bb650205..a91ac56ae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -802,6 +802,78 @@
         "solidity-parser-antlr": "git+https://github.com/solidity-parser/parser.git"
       }
     },
+    "@ethereumjs/common": {
+      "version": "2.6.3",
+      "resolved": "https://registry.npmjs.org/@ethereumjs/common/-/common-2.6.3.tgz",
+      "integrity": "sha512-mQwPucDL7FDYIg9XQ8DL31CnIYZwGhU5hyOO5E+BMmT71G0+RHvIT5rIkLBirJEKxV6+Rcf9aEIY0kXInxUWpQ==",
+      "requires": {
+        "crc-32": "^1.2.0",
+        "ethereumjs-util": "^7.1.4"
+      },
+      "dependencies": {
+        "@types/bn.js": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.1.0.tgz",
+          "integrity": "sha512-QSSVYj7pYFN49kW77o2s9xTCwZ8F2xLbjLLSEVh8D2F4JUhZtPAGOFLTD+ffqksBx/u4cE/KImFjyhqCjn/LIA==",
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "bn.js": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.0.tgz",
+          "integrity": "sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw=="
+        },
+        "ethereumjs-util": {
+          "version": "7.1.4",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-7.1.4.tgz",
+          "integrity": "sha512-p6KmuPCX4mZIqsQzXfmSx9Y0l2hqf+VkAiwSisW3UKUFdk8ZkAt+AYaor83z2nSi6CU2zSsXMlD80hAbNEGM0A==",
+          "requires": {
+            "@types/bn.js": "^5.1.0",
+            "bn.js": "^5.1.2",
+            "create-hash": "^1.1.2",
+            "ethereum-cryptography": "^0.1.3",
+            "rlp": "^2.2.4"
+          }
+        }
+      }
+    },
+    "@ethereumjs/tx": {
+      "version": "3.5.1",
+      "resolved": "https://registry.npmjs.org/@ethereumjs/tx/-/tx-3.5.1.tgz",
+      "integrity": "sha512-xzDrTiu4sqZXUcaBxJ4n4W5FrppwxLxZB4ZDGVLtxSQR4lVuOnFR6RcUHdg1mpUhAPVrmnzLJpxaeXnPxIyhWA==",
+      "requires": {
+        "@ethereumjs/common": "^2.6.3",
+        "ethereumjs-util": "^7.1.4"
+      },
+      "dependencies": {
+        "@types/bn.js": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.1.0.tgz",
+          "integrity": "sha512-QSSVYj7pYFN49kW77o2s9xTCwZ8F2xLbjLLSEVh8D2F4JUhZtPAGOFLTD+ffqksBx/u4cE/KImFjyhqCjn/LIA==",
+          "requires": {
+            "@types/node": "*"
+          }
+        },
+        "bn.js": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.0.tgz",
+          "integrity": "sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw=="
+        },
+        "ethereumjs-util": {
+          "version": "7.1.4",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-7.1.4.tgz",
+          "integrity": "sha512-p6KmuPCX4mZIqsQzXfmSx9Y0l2hqf+VkAiwSisW3UKUFdk8ZkAt+AYaor83z2nSi6CU2zSsXMlD80hAbNEGM0A==",
+          "requires": {
+            "@types/bn.js": "^5.1.0",
+            "bn.js": "^5.1.2",
+            "create-hash": "^1.1.2",
+            "ethereum-cryptography": "^0.1.3",
+            "rlp": "^2.2.4"
+          }
+        }
+      }
+    },
     "@ethersproject/abi": {
       "version": "5.0.0-beta.153",
       "resolved": "https://registry.npmjs.org/@ethersproject/abi/-/abi-5.0.0-beta.153.tgz",
@@ -1436,6 +1508,18 @@
       "resolved": "https://registry.npmjs.org/@ledgerhq/logs/-/logs-4.72.0.tgz",
       "integrity": "sha512-o+TYF8vBcyySRsb2kqBDv/KMeme8a2nwWoG+lAWzbDmWfb2/MrVWYCVYDYvjXdSoI/Cujqy1i0gIDrkdxa9chA=="
     },
+    "@noble/hashes": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@noble/hashes/-/hashes-1.0.0.tgz",
+      "integrity": "sha512-DZVbtY62kc3kkBtMHqwCOfXrT/hnoORy5BJ4+HU1IR59X0KWAOqsfzQPcUl/lQLlG7qXbe/fZ3r/emxtAl+sqg==",
+      "dev": true
+    },
+    "@noble/secp256k1": {
+      "version": "1.5.5",
+      "resolved": "https://registry.npmjs.org/@noble/secp256k1/-/secp256k1-1.5.5.tgz",
+      "integrity": "sha512-sZ1W6gQzYnu45wPrWx8D3kwI2/U29VYTx9OjbDAd7jwRItJ0cSTMPRL/C8AWZFn9kWFLQGqEXVEE86w4Z8LpIQ==",
+      "dev": true
+    },
     "@nodelib/fs.scandir": {
       "version": "2.1.3",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.3.tgz",
@@ -1459,11 +1543,47 @@
         "fastq": "^1.6.0"
       }
     },
+    "@scure/base": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@scure/base/-/base-1.0.0.tgz",
+      "integrity": "sha512-gIVaYhUsy+9s58m/ETjSJVKHhKTBMmcRb9cEV5/5dwvfDlfORjKrFsDeDHWRrm6RjcPvCLZFwGJjAjLj1gg4HA==",
+      "dev": true
+    },
+    "@scure/bip32": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/@scure/bip32/-/bip32-1.0.1.tgz",
+      "integrity": "sha512-AU88KKTpQ+YpTLoicZ/qhFhRRIo96/tlb+8YmDDHR9yiKVjSsFZiefJO4wjS2PMTkz5/oIcw84uAq/8pleQURA==",
+      "dev": true,
+      "requires": {
+        "@noble/hashes": "~1.0.0",
+        "@noble/secp256k1": "~1.5.2",
+        "@scure/base": "~1.0.0"
+      }
+    },
+    "@scure/bip39": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/@scure/bip39/-/bip39-1.0.0.tgz",
+      "integrity": "sha512-HrtcikLbd58PWOkl02k9V6nXWQyoa7A0+Ek9VF7z17DDk9XZAFUcIdqfh0jJXLypmizc5/8P6OxoUeKliiWv4w==",
+      "dev": true,
+      "requires": {
+        "@noble/hashes": "~1.0.0",
+        "@scure/base": "~1.0.0"
+      }
+    },
     "@sindresorhus/is": {
       "version": "0.14.0",
       "resolved": "https://registry.npmjs.org/@sindresorhus/is/-/is-0.14.0.tgz",
       "integrity": "sha512-9NET910DNaIPngYnLLPeg+Ogzqsi9uM4mSboU5y6p8S5DzMTVEsJZrawi+BoDNUVBa2DhJqQYUFvMDfgU062LQ=="
     },
+    "@solidity-parser/parser": {
+      "version": "0.14.1",
+      "resolved": "https://registry.npmjs.org/@solidity-parser/parser/-/parser-0.14.1.tgz",
+      "integrity": "sha512-eLjj2L6AuQjBB6s/ibwCAc0DwrR5Ge+ys+wgWo+bviU7fV2nTMQhU63CGaDKXg9iTmMxwhkyoggdIR7ZGRfMgw==",
+      "dev": true,
+      "requires": {
+        "antlr4ts": "^0.5.0-alpha.4"
+      }
+    },
     "@szmarczak/http-timer": {
       "version": "1.1.2",
       "resolved": "https://registry.npmjs.org/@szmarczak/http-timer/-/http-timer-1.1.2.tgz",
@@ -1473,29 +1593,29 @@
       }
     },
     "@truffle/hdwallet-provider": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/@truffle/hdwallet-provider/-/hdwallet-provider-1.1.0.tgz",
-      "integrity": "sha512-hblrGs0w/S8Ij7BrmUju6GEK35NWQs2Hxc6SMBrz4chlwd9vcBzMWCGoCtYwYOi2d6o9jOv17+bLk9KNlTZR8g==",
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/@truffle/hdwallet-provider/-/hdwallet-provider-1.7.0.tgz",
+      "integrity": "sha512-nT7BPJJ2jPCLJc5uZdVtRnRMny5he5d3kO9Hi80ZSqe5xlnK905grBptM/+CwOfbeqHKQirI1btwm6r3wIBM8A==",
       "requires": {
-        "@trufflesuite/web3-provider-engine": "15.0.13-1",
-        "@types/web3": "^1.0.20",
-        "any-promise": "^1.3.0",
-        "bindings": "^1.5.0",
+        "@ethereumjs/common": "^2.4.0",
+        "@ethereumjs/tx": "^3.3.0",
+        "@trufflesuite/web3-provider-engine": "15.0.14",
+        "eth-sig-util": "^3.0.1",
         "ethereum-cryptography": "^0.1.3",
         "ethereum-protocol": "^1.0.1",
-        "ethereumjs-tx": "^1.0.0",
         "ethereumjs-util": "^6.1.0",
-        "ethereumjs-wallet": "^0.6.3",
-        "source-map-support": "^0.5.19"
+        "ethereumjs-wallet": "^1.0.1"
       },
       "dependencies": {
-        "ethereumjs-tx": {
-          "version": "1.3.7",
-          "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz",
-          "integrity": "sha512-wvLMxzt1RPhAQ9Yi3/HKZTn0FZYpnsmQdbKYfUUpi4j1SEIcbkd9tndVjcPrufY3V7j2IebOpC00Zp2P/Ay2kA==",
+        "eth-sig-util": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/eth-sig-util/-/eth-sig-util-3.0.1.tgz",
+          "integrity": "sha512-0Us50HiGGvZgjtWTyAI/+qTzYPMLy5Q451D0Xy68bxq1QMWdoOddDwGvsqcFT27uohKgalM9z/yxplyt+mY2iQ==",
           "requires": {
-            "ethereum-common": "^0.0.18",
-            "ethereumjs-util": "^5.0.0"
+            "ethereumjs-abi": "^0.6.8",
+            "ethereumjs-util": "^5.1.1",
+            "tweetnacl": "^1.0.3",
+            "tweetnacl-util": "^0.15.0"
           },
           "dependencies": {
             "ethereumjs-util": {
@@ -1528,19 +1648,10 @@
             "rlp": "^2.2.3"
           }
         },
-        "source-map": {
-          "version": "0.6.1",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
-        },
-        "source-map-support": {
-          "version": "0.5.19",
-          "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.19.tgz",
-          "integrity": "sha512-Wonm7zOCIJzBGQdB+thsPar0kYuCIzYvxZwlBa87yi/Mdjv7Tip2cyVbLj5o0cFPN4EVkuTwb3GDDyUx2DGnGw==",
-          "requires": {
-            "buffer-from": "^1.0.0",
-            "source-map": "^0.6.0"
-          }
+        "tweetnacl": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-1.0.3.tgz",
+          "integrity": "sha512-6rt+RN7aOi1nGMyC4Xa5DdYiukl2UWCbcJft7YhxReBGQD7OAM8Pbxw6YMo4r2diNEA8FEmu32YOn9rhaiE5yw=="
         }
       }
     },
@@ -1558,9 +1669,9 @@
       },
       "dependencies": {
         "json-rpc-engine": {
-          "version": "5.3.0",
-          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.3.0.tgz",
-          "integrity": "sha512-+diJ9s8rxB+fbJhT7ZEf8r8spaLRignLd8jTgQ/h5JSGppAHGtNMZtCoabipCaleR1B3GTGxbXBOqhaJSGmPGQ==",
+          "version": "5.4.0",
+          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.4.0.tgz",
+          "integrity": "sha512-rAffKbPoNDjuRnXkecTjnsE3xLLrb00rEkdgalINhaYVYIxDwWtvYBr9UFbhTvPB1B2qUOLoFd/cV6f4Q7mh7g==",
           "requires": {
             "eth-rpc-errors": "^3.0.0",
             "safe-event-emitter": "^1.0.1"
@@ -1588,9 +1699,9 @@
           }
         },
         "json-rpc-engine": {
-          "version": "5.3.0",
-          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.3.0.tgz",
-          "integrity": "sha512-+diJ9s8rxB+fbJhT7ZEf8r8spaLRignLd8jTgQ/h5JSGppAHGtNMZtCoabipCaleR1B3GTGxbXBOqhaJSGmPGQ==",
+          "version": "5.4.0",
+          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.4.0.tgz",
+          "integrity": "sha512-rAffKbPoNDjuRnXkecTjnsE3xLLrb00rEkdgalINhaYVYIxDwWtvYBr9UFbhTvPB1B2qUOLoFd/cV6f4Q7mh7g==",
           "requires": {
             "eth-rpc-errors": "^3.0.0",
             "safe-event-emitter": "^1.0.1"
@@ -1637,9 +1748,9 @@
           }
         },
         "json-rpc-engine": {
-          "version": "5.3.0",
-          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.3.0.tgz",
-          "integrity": "sha512-+diJ9s8rxB+fbJhT7ZEf8r8spaLRignLd8jTgQ/h5JSGppAHGtNMZtCoabipCaleR1B3GTGxbXBOqhaJSGmPGQ==",
+          "version": "5.4.0",
+          "resolved": "https://registry.npmjs.org/json-rpc-engine/-/json-rpc-engine-5.4.0.tgz",
+          "integrity": "sha512-rAffKbPoNDjuRnXkecTjnsE3xLLrb00rEkdgalINhaYVYIxDwWtvYBr9UFbhTvPB1B2qUOLoFd/cV6f4Q7mh7g==",
           "requires": {
             "eth-rpc-errors": "^3.0.0",
             "safe-event-emitter": "^1.0.1"
@@ -1662,10 +1773,11 @@
       }
     },
     "@trufflesuite/web3-provider-engine": {
-      "version": "15.0.13-1",
-      "resolved": "https://registry.npmjs.org/@trufflesuite/web3-provider-engine/-/web3-provider-engine-15.0.13-1.tgz",
-      "integrity": "sha512-6u3x/iIN5fyj8pib5QTUDmIOUiwAGhaqdSTXdqCu6v9zo2BEwdCqgEJd1uXDh3DBmPRDfiZ/ge8oUPy7LerpHg==",
+      "version": "15.0.14",
+      "resolved": "https://registry.npmjs.org/@trufflesuite/web3-provider-engine/-/web3-provider-engine-15.0.14.tgz",
+      "integrity": "sha512-6/LoWvNMxYf0oaYzJldK2a9AdnkAdIeJhHW4nuUBAeO29eK9xezEaEYQ0ph1QRTaICxGxvn+1Azp4u8bQ8NEZw==",
       "requires": {
+        "@ethereumjs/tx": "^3.3.0",
         "@trufflesuite/eth-json-rpc-filters": "^4.1.2-1",
         "@trufflesuite/eth-json-rpc-infura": "^4.0.3-0",
         "@trufflesuite/eth-json-rpc-middleware": "^4.4.2-1",
@@ -1677,7 +1789,6 @@
         "eth-block-tracker": "^4.4.2",
         "eth-json-rpc-errors": "^2.0.2",
         "ethereumjs-block": "^1.2.2",
-        "ethereumjs-tx": "^1.2.0",
         "ethereumjs-util": "^5.1.5",
         "ethereumjs-vm": "^2.3.4",
         "json-stable-stringify": "^1.0.1",
@@ -1703,15 +1814,6 @@
             "safe-event-emitter": "^1.0.1"
           }
         },
-        "ethereumjs-tx": {
-          "version": "1.3.7",
-          "resolved": "https://registry.npmjs.org/ethereumjs-tx/-/ethereumjs-tx-1.3.7.tgz",
-          "integrity": "sha512-wvLMxzt1RPhAQ9Yi3/HKZTn0FZYpnsmQdbKYfUUpi4j1SEIcbkd9tndVjcPrufY3V7j2IebOpC00Zp2P/Ay2kA==",
-          "requires": {
-            "ethereum-common": "^0.0.18",
-            "ethereumjs-util": "^5.0.0"
-          }
-        },
         "pify": {
           "version": "3.0.0",
           "resolved": "https://registry.npmjs.org/pify/-/pify-3.0.0.tgz",
@@ -1796,6 +1898,15 @@
       "resolved": "https://registry.npmjs.org/@types/color-name/-/color-name-1.1.1.tgz",
       "integrity": "sha512-rr+OQyAjxze7GgWrSaJwydHStIhHq2lvY3BOC2Mj7KnzI7XK0Uw1TOOdI9lDoajEbSWLiYgoo4f1R51erQfhPQ=="
     },
+    "@types/concat-stream": {
+      "version": "1.6.1",
+      "resolved": "https://registry.npmjs.org/@types/concat-stream/-/concat-stream-1.6.1.tgz",
+      "integrity": "sha512-eHE4cQPoj6ngxBZMvVf6Hw7Mh4jMW4U9lpGmS5GBPB9RYxlFg+CHaVN7ErNY4W9XfLIEn20b4VDYaIrbq0q4uA==",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/ethereum-protocol": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/@types/ethereum-protocol/-/ethereum-protocol-1.0.1.tgz",
@@ -1811,6 +1922,15 @@
         }
       }
     },
+    "@types/form-data": {
+      "version": "0.0.33",
+      "resolved": "https://registry.npmjs.org/@types/form-data/-/form-data-0.0.33.tgz",
+      "integrity": "sha1-yayFsqX9GENbjIXZ7LUObWyJP/g=",
+      "dev": true,
+      "requires": {
+        "@types/node": "*"
+      }
+    },
     "@types/hdkey": {
       "version": "0.7.1",
       "resolved": "https://registry.npmjs.org/@types/hdkey/-/hdkey-0.7.1.tgz",
@@ -1872,6 +1992,12 @@
       "resolved": "https://registry.npmjs.org/@types/prop-types/-/prop-types-15.7.3.tgz",
       "integrity": "sha512-KfRL3PuHmqQLOG+2tGpRO26Ctg+Cq1E01D2DMriKEATHgWLfeNDmq9e29Q9WIky0dQ3NPkd1mzYH8Lm936Z9qw=="
     },
+    "@types/qs": {
+      "version": "6.9.7",
+      "resolved": "https://registry.npmjs.org/@types/qs/-/qs-6.9.7.tgz",
+      "integrity": "sha512-FGa1F62FT09qcrueBA6qYTrJPVDzah9a+493+o2PCXsesWHIn27G98TsSMs3WPNbZIEj4+VJf6saSFpvD+3Zsw==",
+      "dev": true
+    },
     "@types/react": {
       "version": "16.9.43",
       "resolved": "https://registry.npmjs.org/@types/react/-/react-16.9.43.tgz",
@@ -1899,14 +2025,6 @@
       "resolved": "https://registry.npmjs.org/@types/stack-utils/-/stack-utils-1.0.1.tgz",
       "integrity": "sha512-l42BggppR6zLmpfU6fq9HEa2oGPEI8yrSPL3GITjfRInppYFahObbIQOQK3UGxEnyQpltZLaPe75046NOZQikw=="
     },
-    "@types/web3": {
-      "version": "1.2.2",
-      "resolved": "https://registry.npmjs.org/@types/web3/-/web3-1.2.2.tgz",
-      "integrity": "sha512-eFiYJKggNrOl0nsD+9cMh2MLk4zVBfXfGnVeRFbpiZzBE20eet4KLA3fXcjSuHaBn0RnQzwLAGdgzgzdet4C0A==",
-      "requires": {
-        "web3": "*"
-      }
-    },
     "@types/web3-provider-engine": {
       "version": "14.0.0",
       "resolved": "https://registry.npmjs.org/@types/web3-provider-engine/-/web3-provider-engine-14.0.0.tgz",
@@ -2005,6 +2123,12 @@
       "integrity": "sha1-SlKCrBZHKek2Gbz9OtFR+BfOkfU=",
       "optional": true
     },
+    "ansi-colors": {
+      "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/ansi-colors/-/ansi-colors-3.2.3.tgz",
+      "integrity": "sha512-LEHHyuhlPY3TmuUYMh2oz89lTShfvgbmzaBcxve9t/9Wuy7Dwf4yoAKcND7KFT1HAQfqZ12qtc+DUrBMeKF9nw==",
+      "dev": true
+    },
     "ansi-escapes": {
       "version": "3.2.0",
       "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
@@ -2023,10 +2147,11 @@
         "color-convert": "^1.9.0"
       }
     },
-    "any-promise": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/any-promise/-/any-promise-1.3.0.tgz",
-      "integrity": "sha1-q8av7tzqUugJzcA3au0845Y10X8="
+    "antlr4ts": {
+      "version": "0.5.0-alpha.4",
+      "resolved": "https://registry.npmjs.org/antlr4ts/-/antlr4ts-0.5.0-alpha.4.tgz",
+      "integrity": "sha512-WPQDt1B74OfPv/IMS2ekXAKkTZIHl88uMetg6q3OTqgFxZ/dxDXI0EWLyZid/1Pe6hTftyg5N7gel5wNAGxXyQ==",
+      "dev": true
     },
     "anymatch": {
       "version": "3.1.1",
@@ -2043,6 +2168,16 @@
       "integrity": "sha512-Y9J6ZjXtoYh8RnXVCMOU/ttDmk1aBjunq9vO0ta5x85WDQiQfUF9sIPBITdbiiIVcBo03Hi3jMxigBtsddlXRw==",
       "optional": true
     },
+    "arb-ethers-web3-bridge": {
+      "version": "0.7.3",
+      "resolved": "https://registry.npmjs.org/arb-ethers-web3-bridge/-/arb-ethers-web3-bridge-0.7.3.tgz",
+      "integrity": "sha512-dmnys5OU2RyLrVckNzC+NPR/BZDr38svO45vEaZ1oz2cEacKiVaU1g1bgjvJBQbM0jHaXVk7r7JL1U7xVcaA3A==",
+      "dev": true,
+      "requires": {
+        "ethers-providers": "^2.1.19",
+        "ethers-utils": "^2.1.11"
+      }
+    },
     "are-we-there-yet": {
       "version": "1.1.5",
       "resolved": "https://registry.npmjs.org/are-we-there-yet/-/are-we-there-yet-1.1.5.tgz",
@@ -2123,6 +2258,12 @@
       "resolved": "https://registry.npmjs.org/array-unique/-/array-unique-0.3.2.tgz",
       "integrity": "sha1-qJS3XUvE9s1nnvMkSp/Y9Gri1Cg="
     },
+    "asap": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/asap/-/asap-2.0.6.tgz",
+      "integrity": "sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=",
+      "dev": true
+    },
     "asn1": {
       "version": "0.2.4",
       "resolved": "https://registry.npmjs.org/asn1/-/asn1-0.2.4.tgz",
@@ -3390,6 +3531,12 @@
         "supports-color": "^5.3.0"
       }
     },
+    "charenc": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/charenc/-/charenc-0.0.2.tgz",
+      "integrity": "sha1-wKHS86cJLgN3S/qD8UwPxXkKhmc=",
+      "dev": true
+    },
     "check-error": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/check-error/-/check-error-1.0.2.tgz",
@@ -3486,6 +3633,67 @@
         }
       }
     },
+    "cli-table": {
+      "version": "0.3.11",
+      "resolved": "https://registry.npmjs.org/cli-table/-/cli-table-0.3.11.tgz",
+      "integrity": "sha512-IqLQi4lO0nIB4tcdTpN4LCB9FI3uqrJZK7RC515EnhZ6qBaglkIgICb1wjeAqpdoOabm1+SuQtkXIPdYC93jhQ==",
+      "dev": true,
+      "requires": {
+        "colors": "1.0.3"
+      },
+      "dependencies": {
+        "colors": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/colors/-/colors-1.0.3.tgz",
+          "integrity": "sha1-BDP0TYCWgP3rYO0mDxsMJi6CpAs=",
+          "dev": true
+        }
+      }
+    },
+    "cli-table3": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/cli-table3/-/cli-table3-0.5.1.tgz",
+      "integrity": "sha512-7Qg2Jrep1S/+Q3EceiZtQcDPWxhAvBw+ERf1162v4sikJrvojMHFqXt8QIVha8UlH9rgU0BeWPytZ9/TzYqlUw==",
+      "dev": true,
+      "requires": {
+        "colors": "^1.1.2",
+        "object-assign": "^4.1.0",
+        "string-width": "^2.1.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.1.tgz",
+          "integrity": "sha512-+O9Jct8wf++lXxxFc4hc8LsjaSq0HFzzL7cVsw8pRDIPdjKD2mT4ytDZlLuSBZ4cLKZFXIrMGO7DbQCtMJJMKw==",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz",
+          "integrity": "sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=",
+          "dev": true
+        },
+        "string-width": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-2.1.1.tgz",
+          "integrity": "sha512-nOqH59deCq9SRHlxq1Aw85Jnt4w6KvLKqWVik6oA9ZklXLNIOlqg4F2yrT1MVaTjAqvVwdfeZ7w7aCvJD7ugkw==",
+          "dev": true,
+          "requires": {
+            "is-fullwidth-code-point": "^2.0.0",
+            "strip-ansi": "^4.0.0"
+          }
+        },
+        "strip-ansi": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
+          "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^3.0.0"
+          }
+        }
+      }
+    },
     "cliui": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/cliui/-/cliui-4.1.0.tgz",
@@ -3750,6 +3958,11 @@
         "vary": "^1"
       }
     },
+    "crc-32": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/crc-32/-/crc-32-1.2.2.tgz",
+      "integrity": "sha512-ROmzCKrTnOwybPcJApAA6WBWij23HVfGVNKqqrZpuyZOHqK2CwHSvpGuyt/UNNvaIjEd8X5IFGp4Mh+Ie1IHJQ=="
+    },
     "create-ecdh": {
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/create-ecdh/-/create-ecdh-4.0.3.tgz",
@@ -3815,6 +4028,12 @@
         "which": "^1.2.9"
       }
     },
+    "crypt": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/crypt/-/crypt-0.0.2.tgz",
+      "integrity": "sha1-iNf/fsDfuG9xPch7u0LQRNPmxBs=",
+      "dev": true
+    },
     "crypto-browserify": {
       "version": "3.12.0",
       "resolved": "https://registry.npmjs.org/crypto-browserify/-/crypto-browserify-3.12.0.tgz",
@@ -4370,6 +4589,231 @@
         }
       }
     },
+    "eth-gas-reporter": {
+      "version": "0.2.25",
+      "resolved": "https://registry.npmjs.org/eth-gas-reporter/-/eth-gas-reporter-0.2.25.tgz",
+      "integrity": "sha512-1fRgyE4xUB8SoqLgN3eDfpDfwEfRxh2Sz1b7wzFbyQA+9TekMmvSjjoRu9SKcSVyK+vLkLIsVbJDsTWjw195OQ==",
+      "dev": true,
+      "requires": {
+        "@ethersproject/abi": "^5.0.0-beta.146",
+        "@solidity-parser/parser": "^0.14.0",
+        "cli-table3": "^0.5.0",
+        "colors": "1.4.0",
+        "ethereum-cryptography": "^1.0.3",
+        "ethers": "^4.0.40",
+        "fs-readdir-recursive": "^1.1.0",
+        "lodash": "^4.17.14",
+        "markdown-table": "^1.1.3",
+        "mocha": "^7.1.1",
+        "req-cwd": "^2.0.0",
+        "request": "^2.88.0",
+        "request-promise-native": "^1.0.5",
+        "sha1": "^1.1.1",
+        "sync-request": "^6.0.0"
+      },
+      "dependencies": {
+        "browser-stdout": {
+          "version": "1.3.1",
+          "resolved": "https://registry.npmjs.org/browser-stdout/-/browser-stdout-1.3.1.tgz",
+          "integrity": "sha512-qhAVI1+Av2X7qelOfAIYwXONood6XlZE/fXaBSmW/T5SzLAmCgzi+eiWE7fUvbHaeNBQH13UftjpXxsfLkMpgw==",
+          "dev": true
+        },
+        "camelcase": {
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+          "dev": true
+        },
+        "chokidar": {
+          "version": "3.3.0",
+          "resolved": "https://registry.npmjs.org/chokidar/-/chokidar-3.3.0.tgz",
+          "integrity": "sha512-dGmKLDdT3Gdl7fBUe8XK+gAtGmzy5Fn0XkkWQuYxGIgWVPPse2CxFA5mtrlD0TOHaHjEUqkWNyP1XdHoJES/4A==",
+          "dev": true,
+          "requires": {
+            "anymatch": "~3.1.1",
+            "braces": "~3.0.2",
+            "fsevents": "~2.1.1",
+            "glob-parent": "~5.1.0",
+            "is-binary-path": "~2.1.0",
+            "is-glob": "~4.0.1",
+            "normalize-path": "~3.0.0",
+            "readdirp": "~3.2.0"
+          }
+        },
+        "debug": {
+          "version": "3.2.6",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.2.6.tgz",
+          "integrity": "sha512-mel+jf7nrtEl5Pn1Qx46zARXKDpBbvzezse7p7LqINmdoIk8PYP5SySaxEmYv6TZ0JyEKA1hsCId6DIhgITtWQ==",
+          "dev": true,
+          "requires": {
+            "ms": "^2.1.1"
+          }
+        },
+        "esprima": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/esprima/-/esprima-4.0.1.tgz",
+          "integrity": "sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==",
+          "dev": true
+        },
+        "ethereum-cryptography": {
+          "version": "1.0.3",
+          "resolved": "https://registry.npmjs.org/ethereum-cryptography/-/ethereum-cryptography-1.0.3.tgz",
+          "integrity": "sha512-NQLTW0x0CosoVb/n79x/TRHtfvS3hgNUPTUSCu0vM+9k6IIhHFFrAOJReneexjZsoZxMjJHnJn4lrE8EbnSyqQ==",
+          "dev": true,
+          "requires": {
+            "@noble/hashes": "1.0.0",
+            "@noble/secp256k1": "1.5.5",
+            "@scure/bip32": "1.0.1",
+            "@scure/bip39": "1.0.0"
+          }
+        },
+        "find-up": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-3.0.0.tgz",
+          "integrity": "sha512-1yD6RmLI1XBfxugvORwlck6f75tYL+iR0jqwsOrOxMZyGYqUuDhJ0l4AXdO1iX/FTs9cBAMEk1gWSEx1kSbylg==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^3.0.0"
+          }
+        },
+        "glob": {
+          "version": "7.1.3",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
+          "integrity": "sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "growl": {
+          "version": "1.10.5",
+          "resolved": "https://registry.npmjs.org/growl/-/growl-1.10.5.tgz",
+          "integrity": "sha512-qBr4OuELkhPenW6goKVXiv47US3clb3/IbuWF9KNKEijAy9oeHxU9IgzjvJhHkUzhaj7rOUD7+YGWqUjLp5oSA==",
+          "dev": true
+        },
+        "he": {
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/he/-/he-1.2.0.tgz",
+          "integrity": "sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==",
+          "dev": true
+        },
+        "js-yaml": {
+          "version": "3.13.1",
+          "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
+          "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+          "dev": true,
+          "requires": {
+            "argparse": "^1.0.7",
+            "esprima": "^4.0.0"
+          }
+        },
+        "locate-path": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-3.0.0.tgz",
+          "integrity": "sha512-7AO748wWnIhNqAuaty2ZWHkQHRSNfPVIsPIfwEOWO22AmaoVrWavlOcMR5nzTLNYvp36X220/maaRsrec1G65A==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^3.0.0",
+            "path-exists": "^3.0.0"
+          }
+        },
+        "mocha": {
+          "version": "7.2.0",
+          "resolved": "https://registry.npmjs.org/mocha/-/mocha-7.2.0.tgz",
+          "integrity": "sha512-O9CIypScywTVpNaRrCAgoUnJgozpIofjKUYmJhiCIJMiuYnLI6otcb1/kpW9/n/tJODHGZ7i8aLQoDVsMtOKQQ==",
+          "dev": true,
+          "requires": {
+            "ansi-colors": "3.2.3",
+            "browser-stdout": "1.3.1",
+            "chokidar": "3.3.0",
+            "debug": "3.2.6",
+            "diff": "3.5.0",
+            "escape-string-regexp": "1.0.5",
+            "find-up": "3.0.0",
+            "glob": "7.1.3",
+            "growl": "1.10.5",
+            "he": "1.2.0",
+            "js-yaml": "3.13.1",
+            "log-symbols": "3.0.0",
+            "minimatch": "3.0.4",
+            "mkdirp": "0.5.5",
+            "ms": "2.1.1",
+            "node-environment-flags": "1.0.6",
+            "object.assign": "4.1.0",
+            "strip-json-comments": "2.0.1",
+            "supports-color": "6.0.0",
+            "which": "1.3.1",
+            "wide-align": "1.1.3",
+            "yargs": "13.3.2",
+            "yargs-parser": "13.1.2",
+            "yargs-unparser": "1.6.0"
+          }
+        },
+        "ms": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.1.tgz",
+          "integrity": "sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==",
+          "dev": true
+        },
+        "p-limit": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+          "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-3.0.0.tgz",
+          "integrity": "sha512-x+12w/To+4GFfgJhBEpiDcLozRJGegY+Ei7/z0tSLkMmxGZNybVMSfWj9aJn8Z5Fc7dBUNJOOVgPv2H7IwulSQ==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.0.0"
+          }
+        },
+        "p-try": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+          "dev": true
+        },
+        "readdirp": {
+          "version": "3.2.0",
+          "resolved": "https://registry.npmjs.org/readdirp/-/readdirp-3.2.0.tgz",
+          "integrity": "sha512-crk4Qu3pmXwgxdSgGhgA/eXiJAPQiX4GMOZZMXnqKxHX7TaoL+3gQVo/WeuAiogr07DpnfjIMpXXa+PAIvwPGQ==",
+          "dev": true,
+          "requires": {
+            "picomatch": "^2.0.4"
+          }
+        },
+        "supports-color": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.0.0.tgz",
+          "integrity": "sha512-on9Kwidc1IUQo+bQdhi8+Tijpo0e1SS6RoGo2guUwn5vdaxw8RXOF9Vb2ws+ihWOmh4JnCJOvaziZWP1VABaLg==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        },
+        "yargs-parser": {
+          "version": "13.1.2",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-13.1.2.tgz",
+          "integrity": "sha512-3lbsNRf/j+A4QuSZfDRA7HRSfWrzO0YjqTJd5kjAq37Zep1CEgaYmrH9Q3GwPiB9cHyd1Y1UwggGhJGoxipbzg==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
+          }
+        }
+      }
+    },
     "eth-json-rpc-errors": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/eth-json-rpc-errors/-/eth-json-rpc-errors-2.0.2.tgz",
@@ -4692,6 +5136,32 @@
       "requires": {
         "ethereumjs-abi": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
         "ethereumjs-util": "^5.1.1"
+      },
+      "dependencies": {
+        "ethereumjs-abi": {
+          "version": "git+https://github.com/ethereumjs/ethereumjs-abi.git#ee3994657fa7a427238e6ba92a84d0b529bbcde0",
+          "from": "git+https://github.com/ethereumjs/ethereumjs-abi.git",
+          "requires": {
+            "bn.js": "^4.11.8",
+            "ethereumjs-util": "^6.0.0"
+          },
+          "dependencies": {
+            "ethereumjs-util": {
+              "version": "6.2.1",
+              "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz",
+              "integrity": "sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==",
+              "requires": {
+                "@types/bn.js": "^4.11.3",
+                "bn.js": "^4.11.0",
+                "create-hash": "^1.1.2",
+                "elliptic": "^6.5.2",
+                "ethereum-cryptography": "^0.1.3",
+                "ethjs-util": "0.1.6",
+                "rlp": "^2.2.3"
+              }
+            }
+          }
+        }
       }
     },
     "eth-tx-summary": {
@@ -4818,7 +5288,8 @@
     },
     "ethereumjs-abi": {
       "version": "0.6.8",
-      "resolved": "git+https://github.com/ethereumjs/ethereumjs-abi.git#1cfbb13862f90f0b391d8a699544d5fe4dfb8c7b",
+      "resolved": "https://registry.npmjs.org/ethereumjs-abi/-/ethereumjs-abi-0.6.8.tgz",
+      "integrity": "sha512-Tx0r/iXI6r+lRsdvkFDlut0N08jWMnKRZ6Gkq+Nmw75lZe4e6o3EkSnkaBP5NF6+m5PTGAr9JP43N3LyeoglsA==",
       "requires": {
         "bn.js": "^4.11.8",
         "ethereumjs-util": "^6.0.0"
@@ -4992,44 +5463,59 @@
       }
     },
     "ethereumjs-wallet": {
-      "version": "0.6.5",
-      "resolved": "https://registry.npmjs.org/ethereumjs-wallet/-/ethereumjs-wallet-0.6.5.tgz",
-      "integrity": "sha512-MDwjwB9VQVnpp/Dc1XzA6J1a3wgHQ4hSvA1uWNatdpOrtCbPVuQSKSyRnjLvS0a+KKMw2pvQ9Ybqpb3+eW8oNA==",
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/ethereumjs-wallet/-/ethereumjs-wallet-1.0.2.tgz",
+      "integrity": "sha512-CCWV4RESJgRdHIvFciVQFnCHfqyhXWchTPlkfp28Qc53ufs+doi5I/cV2+xeK9+qEo25XCWfP9MiL+WEPAZfdA==",
       "requires": {
-        "aes-js": "^3.1.1",
+        "aes-js": "^3.1.2",
         "bs58check": "^2.1.2",
         "ethereum-cryptography": "^0.1.3",
-        "ethereumjs-util": "^6.0.0",
-        "randombytes": "^2.0.6",
-        "safe-buffer": "^5.1.2",
-        "scryptsy": "^1.2.1",
+        "ethereumjs-util": "^7.1.2",
+        "randombytes": "^2.1.0",
+        "scrypt-js": "^3.0.1",
         "utf8": "^3.0.0",
-        "uuid": "^3.3.2"
+        "uuid": "^8.3.2"
       },
       "dependencies": {
+        "@types/bn.js": {
+          "version": "5.1.0",
+          "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.1.0.tgz",
+          "integrity": "sha512-QSSVYj7pYFN49kW77o2s9xTCwZ8F2xLbjLLSEVh8D2F4JUhZtPAGOFLTD+ffqksBx/u4cE/KImFjyhqCjn/LIA==",
+          "requires": {
+            "@types/node": "*"
+          }
+        },
         "aes-js": {
           "version": "3.1.2",
           "resolved": "https://registry.npmjs.org/aes-js/-/aes-js-3.1.2.tgz",
           "integrity": "sha512-e5pEa2kBnBOgR4Y/p20pskXI74UEz7de8ZGVo58asOtvSVG5YAbJeELPZxOmt+Bnz3rX753YKhfIn4X4l1PPRQ=="
         },
+        "bn.js": {
+          "version": "5.2.0",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.0.tgz",
+          "integrity": "sha512-D7iWRBvnZE8ecXiLj/9wbxH7Tk79fAh8IHaTNq1RWRixsS02W+5qS+iE9yq6RYl0asXx5tw0bLhmT5pIfbSquw=="
+        },
         "ethereumjs-util": {
-          "version": "6.2.1",
-          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-6.2.1.tgz",
-          "integrity": "sha512-W2Ktez4L01Vexijrm5EB6w7dg4n/TgpoYU4avuT5T3Vmnw/eCRtiBrJfQYS/DCSvDIOLn2k57GcHdeBcgVxAqw==",
+          "version": "7.1.4",
+          "resolved": "https://registry.npmjs.org/ethereumjs-util/-/ethereumjs-util-7.1.4.tgz",
+          "integrity": "sha512-p6KmuPCX4mZIqsQzXfmSx9Y0l2hqf+VkAiwSisW3UKUFdk8ZkAt+AYaor83z2nSi6CU2zSsXMlD80hAbNEGM0A==",
           "requires": {
-            "@types/bn.js": "^4.11.3",
-            "bn.js": "^4.11.0",
+            "@types/bn.js": "^5.1.0",
+            "bn.js": "^5.1.2",
             "create-hash": "^1.1.2",
-            "elliptic": "^6.5.2",
             "ethereum-cryptography": "^0.1.3",
-            "ethjs-util": "0.1.6",
-            "rlp": "^2.2.3"
+            "rlp": "^2.2.4"
           }
         },
+        "scrypt-js": {
+          "version": "3.0.1",
+          "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
+          "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA=="
+        },
         "uuid": {
-          "version": "3.4.0",
-          "resolved": "https://registry.npmjs.org/uuid/-/uuid-3.4.0.tgz",
-          "integrity": "sha512-HjSDRw6gZE5JMggctHBcjVak08+KEVhSIiDzFnT9S9aegmp85S/bReBVTb4QTFaRNptJ9kuYaNhnbNEOkbKb/A=="
+          "version": "8.3.2",
+          "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+          "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
         }
       }
     },
@@ -5075,7 +5561,46 @@
         "js-sha3": {
           "version": "0.5.7",
           "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
-          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc="
+        }
+      }
+    },
+    "ethers-providers": {
+      "version": "2.1.19",
+      "resolved": "https://registry.npmjs.org/ethers-providers/-/ethers-providers-2.1.19.tgz",
+      "integrity": "sha512-usjJ5qyGO84kMmIYImwGhJo12nnG5uzqpZlViYQFEfwBzqoj7b9e55xnc7fP6XWcnPrrbMqIa0KrW8BKy9bYpg==",
+      "dev": true,
+      "requires": {
+        "ethers-utils": "^2.1.0",
+        "inherits": "2.0.1",
+        "xmlhttprequest": "1.8.0"
+      },
+      "dependencies": {
+        "inherits": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.1.tgz",
+          "integrity": "sha1-sX0I0ya0Qj5Wjv9xn5GwscvfafE=",
+          "dev": true
+        }
+      }
+    },
+    "ethers-utils": {
+      "version": "2.1.11",
+      "resolved": "https://registry.npmjs.org/ethers-utils/-/ethers-utils-2.1.11.tgz",
+      "integrity": "sha512-BfkGStBmmLjhTldmp5lifiwUeDjx/yowoWfmUnnvPNsix5PFE8IXQdY5VT/Qo1SXMgxzCe8m0Z8ysUw6Q9OmAw==",
+      "dev": true,
+      "requires": {
+        "bn.js": "^4.4.0",
+        "hash.js": "^1.0.0",
+        "js-sha3": "0.5.7",
+        "xmlhttprequest": "1.8.0"
+      },
+      "dependencies": {
+        "js-sha3": {
+          "version": "0.5.7",
+          "resolved": "https://registry.npmjs.org/js-sha3/-/js-sha3-0.5.7.tgz",
+          "integrity": "sha1-DU/9gALVMzqrr0oj7tL2N0yfKOc=",
+          "dev": true
         }
       }
     },
@@ -5507,6 +6032,23 @@
         "locate-path": "^2.0.0"
       }
     },
+    "flat": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/flat/-/flat-4.1.1.tgz",
+      "integrity": "sha512-FmTtBsHskrU6FJ2VxCnsDb84wu9zhmO3cUX2kGFb5tuwhfXxGciiT0oRY+cck35QmG+NmGh5eLz6lLCpWTqwpA==",
+      "dev": true,
+      "requires": {
+        "is-buffer": "~2.0.3"
+      },
+      "dependencies": {
+        "is-buffer": {
+          "version": "2.0.5",
+          "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.5.tgz",
+          "integrity": "sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==",
+          "dev": true
+        }
+      }
+    },
     "for-each": {
       "version": "0.3.3",
       "resolved": "https://registry.npmjs.org/for-each/-/for-each-0.3.3.tgz",
@@ -5588,6 +6130,12 @@
         "minipass": "^2.6.0"
       }
     },
+    "fs-readdir-recursive": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/fs-readdir-recursive/-/fs-readdir-recursive-1.1.0.tgz",
+      "integrity": "sha512-GNanXlVr2pf02+sPN40XN8HG+ePaNcvM0q5mZBd668Obwb0yD5GiUbZOFgwn8kGMY6I3mdyDJzieUy3PTYyTRA==",
+      "dev": true
+    },
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
@@ -15586,11 +16134,6 @@
           "resolved": "https://registry.npmjs.org/path-key/-/path-key-3.1.1.tgz",
           "integrity": "sha512-ojmeN0qd+y0jszEtoY48r0Peq5dwMEkIlCOu6Q5f41lfkswXuKtYrhgoTpLnyIcHm24Uhqx+5Tqm2InSwLhE6Q=="
         },
-        "path-parse": {
-          "version": "1.0.6",
-          "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-          "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw=="
-        },
         "path-root": {
           "version": "0.1.1",
           "resolved": "https://registry.npmjs.org/path-root/-/path-root-0.1.1.tgz",
@@ -19668,6 +20211,12 @@
       "resolved": "https://registry.npmjs.org/get-func-name/-/get-func-name-2.0.0.tgz",
       "integrity": "sha1-6td0q+5y4gQJQzoGY2YCPdaIekE="
     },
+    "get-port": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/get-port/-/get-port-3.2.0.tgz",
+      "integrity": "sha1-3Xzn3hh8Bsi/NTeWrHHgmfCYDrw=",
+      "dev": true
+    },
     "get-stream": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-3.0.0.tgz",
@@ -20016,6 +20565,18 @@
       "resolved": "https://registry.npmjs.org/html-escaper/-/html-escaper-2.0.2.tgz",
       "integrity": "sha512-H2iMtd0I4Mt5eYiapRdIDjp+XzelXQ0tFE4JS7YFwFevXXMmOp9myNrUvCg0D6ws8iqkRPBfKHgbwig1SmlLfg=="
     },
+    "http-basic": {
+      "version": "8.1.3",
+      "resolved": "https://registry.npmjs.org/http-basic/-/http-basic-8.1.3.tgz",
+      "integrity": "sha512-/EcDMwJZh3mABI2NhGfHOGOeOZITqfkEO4p/xK+l3NpyncIHUQBoMvCSF/b5GqvKtySC2srL/GGG3+EtlqlmCw==",
+      "dev": true,
+      "requires": {
+        "caseless": "^0.12.0",
+        "concat-stream": "^1.6.2",
+        "http-response-object": "^3.0.1",
+        "parse-cache-control": "^1.0.1"
+      }
+    },
     "http-cache-semantics": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/http-cache-semantics/-/http-cache-semantics-4.1.0.tgz",
@@ -20045,6 +20606,23 @@
       "resolved": "https://registry.npmjs.org/http-https/-/http-https-1.0.0.tgz",
       "integrity": "sha1-L5CN1fHbQGjAWM1ubUzjkskTOJs="
     },
+    "http-response-object": {
+      "version": "3.0.2",
+      "resolved": "https://registry.npmjs.org/http-response-object/-/http-response-object-3.0.2.tgz",
+      "integrity": "sha512-bqX0XTF6fnXSQcEJ2Iuyr75yVakyjIDCqroJQ/aHfSdlM743Cwqoi2nDYMzLGWUcuTWGWy8AAvOKXTfiv6q9RA==",
+      "dev": true,
+      "requires": {
+        "@types/node": "^10.0.3"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "10.17.60",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-10.17.60.tgz",
+          "integrity": "sha512-F0KIgDJfy2nA3zMLmWGKxcH2ZVEtCZXHHdOQs2gSaQ27+lNeEfGxzkIw90aXswATX7AZ33tahPbzy6KAfUreVw==",
+          "dev": true
+        }
+      }
+    },
     "http-signature": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/http-signature/-/http-signature-1.2.0.tgz",
@@ -21826,6 +22404,15 @@
       "resolved": "https://registry.npmjs.org/lodash.values/-/lodash.values-4.3.0.tgz",
       "integrity": "sha1-o6bCsOvsxcLLocF+bmIP6BtT00c="
     },
+    "log-symbols": {
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/log-symbols/-/log-symbols-3.0.0.tgz",
+      "integrity": "sha512-dSkNGuI7iG3mfvDzUuYZyvk5dD9ocYCYzNU6CYDE6+Xqd+gwme6Z00NS3dUh8mq/73HaEtT7m6W+yUPtU6BZnQ==",
+      "dev": true,
+      "requires": {
+        "chalk": "^2.4.2"
+      }
+    },
     "loglevel": {
       "version": "1.6.8",
       "resolved": "https://registry.npmjs.org/loglevel/-/loglevel-1.6.8.tgz",
@@ -21900,6 +22487,12 @@
         "object-visit": "^1.0.0"
       }
     },
+    "markdown-table": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/markdown-table/-/markdown-table-1.1.3.tgz",
+      "integrity": "sha512-1RUZVgQlpJSPWYbFSpmudq5nHY1doEIv89gBtF0s4gW1GF2XorxcA/70M5vq7rLv0a6mhOUccRsqkwhwLCIQ2Q==",
+      "dev": true
+    },
     "math-random": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/math-random/-/math-random-1.0.4.tgz",
@@ -22380,6 +22973,16 @@
       "resolved": "https://registry.npmjs.org/node-addon-api/-/node-addon-api-2.0.2.tgz",
       "integrity": "sha512-Ntyt4AIXyaLIuMHF6IOoTakB3K+RWxwtsHNRxllEoA6vPwP9o4866g6YWDLUdnucilZhmkxiHwHr11gAENw+QA=="
     },
+    "node-environment-flags": {
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/node-environment-flags/-/node-environment-flags-1.0.6.tgz",
+      "integrity": "sha512-5Evy2epuL+6TM0lCQGpFIj6KwiEsGh1SrHUhTbNX+sLbBtjidPZFAnVK9y5yU1+h//RitLbRHTIMyxQPtxMdHw==",
+      "dev": true,
+      "requires": {
+        "object.getownpropertydescriptors": "^2.0.3",
+        "semver": "^5.7.0"
+      }
+    },
     "node-fetch": {
       "version": "1.7.3",
       "resolved": "https://registry.npmjs.org/node-fetch/-/node-fetch-1.7.3.tgz",
@@ -22733,6 +23336,12 @@
         "safe-buffer": "^5.1.1"
       }
     },
+    "parse-cache-control": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/parse-cache-control/-/parse-cache-control-1.0.1.tgz",
+      "integrity": "sha1-juqz5U+laSD+Fro493+iGqzC104=",
+      "dev": true
+    },
     "parse-glob": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/parse-glob/-/parse-glob-3.0.4.tgz",
@@ -22807,9 +23416,9 @@
       "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A="
     },
     "path-parse": {
-      "version": "1.0.6",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
-      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw=="
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw=="
     },
     "path-to-regexp": {
       "version": "0.1.7",
@@ -23022,6 +23631,15 @@
       "resolved": "https://registry.npmjs.org/process-nextick-args/-/process-nextick-args-2.0.1.tgz",
       "integrity": "sha512-3ouUOpQhtgrbOa17J7+uxOTpITYWaGP7/AhoR3+A+/1e9skrzelGi/dXzEYyvbxubEF6Wn2ypscTKiKJFFn1ag=="
     },
+    "promise": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/promise/-/promise-8.1.0.tgz",
+      "integrity": "sha512-W04AqnILOL/sPRXziNicCjSNRruLAuIHEOVBazepu0545DDNGYHz7ar9ZgZ1fMU8/MA4mVxp5rkBWRi6OXIy3Q==",
+      "dev": true,
+      "requires": {
+        "asap": "~2.0.6"
+      }
+    },
     "promise-to-callback": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/promise-to-callback/-/promise-to-callback-1.0.0.tgz",
@@ -23363,6 +23981,24 @@
         "is-finite": "^1.0.0"
       }
     },
+    "req-cwd": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/req-cwd/-/req-cwd-2.0.0.tgz",
+      "integrity": "sha1-1AgrTURZgDZkD7c93qAe1T20nrw=",
+      "dev": true,
+      "requires": {
+        "req-from": "^2.0.0"
+      }
+    },
+    "req-from": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/req-from/-/req-from-2.0.0.tgz",
+      "integrity": "sha1-10GI5H+TeW9Kpx327jWuaJ8+DnA=",
+      "dev": true,
+      "requires": {
+        "resolve-from": "^3.0.0"
+      }
+    },
     "request": {
       "version": "2.88.2",
       "resolved": "https://registry.npmjs.org/request/-/request-2.88.2.tgz",
@@ -23730,14 +24366,6 @@
       "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-2.0.4.tgz",
       "integrity": "sha512-4KsaGcPnuhtCZQCxFxN3GVYIhKFPTdLd8PLC552XwbMndtD0cjRFAhDuuydXQ0h08ZfPgzqe6EKHozpuH74iDw=="
     },
-    "scryptsy": {
-      "version": "1.2.1",
-      "resolved": "https://registry.npmjs.org/scryptsy/-/scryptsy-1.2.1.tgz",
-      "integrity": "sha1-oyJfpLJST4AnAHYeKFW987LZIWM=",
-      "requires": {
-        "pbkdf2": "^3.0.3"
-      }
-    },
     "secp256k1": {
       "version": "3.8.0",
       "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-3.8.0.tgz",
@@ -23868,6 +24496,16 @@
         "safe-buffer": "^5.0.1"
       }
     },
+    "sha1": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/sha1/-/sha1-1.1.1.tgz",
+      "integrity": "sha1-rdqnqTFo85PxnrKxUJFhjicA+Eg=",
+      "dev": true,
+      "requires": {
+        "charenc": ">= 0.0.1",
+        "crypt": ">= 0.0.1"
+      }
+    },
     "shebang-command": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
@@ -24894,8 +25532,7 @@
     "strip-json-comments": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
-      "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
-      "optional": true
+      "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo="
     },
     "supports-color": {
       "version": "5.5.0",
@@ -25033,6 +25670,26 @@
       "resolved": "https://registry.npmjs.org/symbol-tree/-/symbol-tree-3.2.4.tgz",
       "integrity": "sha512-9QNk5KwDF+Bvz+PyObkmSYjI5ksVUYtjW7AU22r2NKcfLJcXp96hkDWU3+XndOsUb+AQ9QhfzfCT2O+CNWT5Tw=="
     },
+    "sync-request": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/sync-request/-/sync-request-6.1.0.tgz",
+      "integrity": "sha512-8fjNkrNlNCrVc/av+Jn+xxqfCjYaBoHqCsDz6mt030UMxJGr+GSfCV1dQt2gRtlL63+VPidwDVLr7V2OcTSdRw==",
+      "dev": true,
+      "requires": {
+        "http-response-object": "^3.0.1",
+        "sync-rpc": "^1.2.1",
+        "then-request": "^6.0.0"
+      }
+    },
+    "sync-rpc": {
+      "version": "1.3.6",
+      "resolved": "https://registry.npmjs.org/sync-rpc/-/sync-rpc-1.3.6.tgz",
+      "integrity": "sha512-J8jTXuZzRlvU7HemDgHi3pGnh/rkoqR/OZSjhTyyZrEkkYQbk7Z33AXp37mkPfPpfdOuj7Ex3H/TJM1z48uPQw==",
+      "dev": true,
+      "requires": {
+        "get-port": "^3.1.0"
+      }
+    },
     "tape": {
       "version": "4.13.3",
       "resolved": "https://registry.npmjs.org/tape/-/tape-4.13.3.tgz",
@@ -25125,6 +25782,33 @@
       "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
       "dev": true
     },
+    "then-request": {
+      "version": "6.0.2",
+      "resolved": "https://registry.npmjs.org/then-request/-/then-request-6.0.2.tgz",
+      "integrity": "sha512-3ZBiG7JvP3wbDzA9iNY5zJQcHL4jn/0BWtXIkagfz7QgOL/LqjCEOBQuJNZfu0XYnv5JhKh+cDxCPM4ILrqruA==",
+      "dev": true,
+      "requires": {
+        "@types/concat-stream": "^1.6.0",
+        "@types/form-data": "0.0.33",
+        "@types/node": "^8.0.0",
+        "@types/qs": "^6.2.31",
+        "caseless": "~0.12.0",
+        "concat-stream": "^1.6.0",
+        "form-data": "^2.2.0",
+        "http-basic": "^8.1.1",
+        "http-response-object": "^3.0.1",
+        "promise": "^8.0.0",
+        "qs": "^6.4.0"
+      },
+      "dependencies": {
+        "@types/node": {
+          "version": "8.10.66",
+          "resolved": "https://registry.npmjs.org/@types/node/-/node-8.10.66.tgz",
+          "integrity": "sha512-tktOkFUA4kXx2hhhrB8bIFb5TbwzS4uOhKEmwiD+NoiL0qtP2OQ9mFldbgD4dV1djrlBYP6eBuQZiWjuHUpqFw==",
+          "dev": true
+        }
+      }
+    },
     "throat": {
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/throat/-/throat-4.1.0.tgz",
@@ -25265,6 +25949,204 @@
       "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
       "integrity": "sha1-yy4SAwZ+DI3h9hQJS5/kVwTqYAM="
     },
+    "truffle-contract-size": {
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/truffle-contract-size/-/truffle-contract-size-2.0.1.tgz",
+      "integrity": "sha512-AIKPwHPC/1pZwtVjgUcgcK23k6gWxKhn4ZnKLr339uieb94UgAUeIwGUkfc87T+0lqgC6ePY7YhsFeoZK2YEsA==",
+      "dev": true,
+      "requires": {
+        "cli-table": "^0.3.1",
+        "yargs": "^15.3.1"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "5.0.1",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
+          "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
+          "dev": true
+        },
+        "ansi-styles": {
+          "version": "4.3.0",
+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
+          "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
+          "dev": true,
+          "requires": {
+            "color-convert": "^2.0.1"
+          }
+        },
+        "camelcase": {
+          "version": "5.3.1",
+          "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-5.3.1.tgz",
+          "integrity": "sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==",
+          "dev": true
+        },
+        "cliui": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/cliui/-/cliui-6.0.0.tgz",
+          "integrity": "sha512-t6wbgtoCXvAzst7QgXxJYqPt0usEfbgQdftEPbLL/cvv6HPE5VgvqCuAIDR0NgU52ds6rFwqrgakNLrHEjCbrQ==",
+          "dev": true,
+          "requires": {
+            "string-width": "^4.2.0",
+            "strip-ansi": "^6.0.0",
+            "wrap-ansi": "^6.2.0"
+          }
+        },
+        "color-convert": {
+          "version": "2.0.1",
+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
+          "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
+          "dev": true,
+          "requires": {
+            "color-name": "~1.1.4"
+          }
+        },
+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
+          "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+          "dev": true
+        },
+        "emoji-regex": {
+          "version": "8.0.0",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+          "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+          "dev": true
+        },
+        "find-up": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz",
+          "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+          "dev": true,
+          "requires": {
+            "locate-path": "^5.0.0",
+            "path-exists": "^4.0.0"
+          }
+        },
+        "get-caller-file": {
+          "version": "2.0.5",
+          "resolved": "https://registry.npmjs.org/get-caller-file/-/get-caller-file-2.0.5.tgz",
+          "integrity": "sha512-DyFP3BM/3YHTQOCUL/w0OZHR0lpKeGrxotcHWcqNEdnltqFwXVfhEBQ94eIo34AfQpo0rGki4cyIiftY06h2Fg==",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
+          "integrity": "sha512-zymm5+u+sCsSWyD9qNaejV3DFvhCKclKdizYaJUuHA83RLjb7nSuGnddCHGv0hk+KY7BMAlsWeK4Ueg6EV6XQg==",
+          "dev": true
+        },
+        "locate-path": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
+          "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+          "dev": true,
+          "requires": {
+            "p-locate": "^4.1.0"
+          }
+        },
+        "p-limit": {
+          "version": "2.3.0",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
+          "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "p-locate": {
+          "version": "4.1.0",
+          "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
+          "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+          "dev": true,
+          "requires": {
+            "p-limit": "^2.2.0"
+          }
+        },
+        "p-try": {
+          "version": "2.2.0",
+          "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
+          "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+          "dev": true
+        },
+        "path-exists": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
+          "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
+          "dev": true
+        },
+        "require-main-filename": {
+          "version": "2.0.0",
+          "resolved": "https://registry.npmjs.org/require-main-filename/-/require-main-filename-2.0.0.tgz",
+          "integrity": "sha512-NKN5kMDylKuldxYLSUfrbo5Tuzh4hd+2E8NPPX02mZtn1VuREQToYe/ZdlJy+J3uCpfaiGF05e7B8W0iXbQHmg==",
+          "dev": true
+        },
+        "string-width": {
+          "version": "4.2.3",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
+          "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^8.0.0",
+            "is-fullwidth-code-point": "^3.0.0",
+            "strip-ansi": "^6.0.1"
+          }
+        },
+        "strip-ansi": {
+          "version": "6.0.1",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
+          "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^5.0.1"
+          }
+        },
+        "wrap-ansi": {
+          "version": "6.2.0",
+          "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
+          "integrity": "sha512-r6lPcBGxZXlIcymEu7InxDMhdW0KDxpLgoFLcguasxCaJ/SOIZwINatK9KY/tf+ZrlywOKU0UDj3ATXUBfxJXA==",
+          "dev": true,
+          "requires": {
+            "ansi-styles": "^4.0.0",
+            "string-width": "^4.1.0",
+            "strip-ansi": "^6.0.0"
+          }
+        },
+        "y18n": {
+          "version": "4.0.3",
+          "resolved": "https://registry.npmjs.org/y18n/-/y18n-4.0.3.tgz",
+          "integrity": "sha512-JKhqTOwSrqNA1NY5lSztJ1GrBiUodLMmIZuLiDaMRJ+itFd+ABVE8XBjOvIWL+rSqNDC74LCSFmlb/U4UZ4hJQ==",
+          "dev": true
+        },
+        "yargs": {
+          "version": "15.4.1",
+          "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.4.1.tgz",
+          "integrity": "sha512-aePbxDmcYW++PaqBsJ+HYUFwCdv4LVvdnhBy78E57PIor8/OVvhMrADFFEDh8DHDFRv/O9i3lPhsENjO7QX0+A==",
+          "dev": true,
+          "requires": {
+            "cliui": "^6.0.0",
+            "decamelize": "^1.2.0",
+            "find-up": "^4.1.0",
+            "get-caller-file": "^2.0.1",
+            "require-directory": "^2.1.1",
+            "require-main-filename": "^2.0.0",
+            "set-blocking": "^2.0.0",
+            "string-width": "^4.2.0",
+            "which-module": "^2.0.0",
+            "y18n": "^4.0.0",
+            "yargs-parser": "^18.1.2"
+          }
+        },
+        "yargs-parser": {
+          "version": "18.1.3",
+          "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.3.tgz",
+          "integrity": "sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==",
+          "dev": true,
+          "requires": {
+            "camelcase": "^5.0.0",
+            "decamelize": "^1.2.0"
+          }
+        }
+      }
+    },
     "ts-jest": {
       "version": "24.3.0",
       "resolved": "https://registry.npmjs.org/ts-jest/-/ts-jest-24.3.0.tgz",
@@ -25318,6 +26200,11 @@
       "resolved": "https://registry.npmjs.org/tweetnacl/-/tweetnacl-0.14.5.tgz",
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q="
     },
+    "tweetnacl-util": {
+      "version": "0.15.1",
+      "resolved": "https://registry.npmjs.org/tweetnacl-util/-/tweetnacl-util-0.15.1.tgz",
+      "integrity": "sha512-RKJBIj8lySrShN4w6i/BonWp2Z/uxwC3h4y7xsRrpP59ZboCd0GpEVsOnMDYLMmKBpYhb5TgHzZXy7wTfYFBRw=="
+    },
     "type": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/type/-/type-1.2.0.tgz",
@@ -26106,7 +26993,6 @@
       "version": "1.1.3",
       "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
       "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
-      "optional": true,
       "requires": {
         "string-width": "^1.0.2 || 2"
       }
@@ -26395,6 +27281,17 @@
       "requires": {
         "camelcase": "^4.1.0"
       }
+    },
+    "yargs-unparser": {
+      "version": "1.6.0",
+      "resolved": "https://registry.npmjs.org/yargs-unparser/-/yargs-unparser-1.6.0.tgz",
+      "integrity": "sha512-W9tKgmSn0DpSatfri0nx52Joq5hVXgeLiqR/5G0sZNDoLZFOr/xjBUDcShCOGNsBnEMNo1KAMBkTej1Hm62HTw==",
+      "dev": true,
+      "requires": {
+        "flat": "^4.1.0",
+        "lodash": "^4.17.15",
+        "yargs": "^13.3.0"
+      }
     }
   }
 }
diff --git a/yarn.lock b/yarn.lock
index d83058185..1039fea05 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -8325,9 +8325,9 @@ path-key@^2.0.0, path-key@^2.0.1:
   integrity sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A=
 
 path-parse@^1.0.6:
-  version "1.0.6"
-  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.6.tgz#d62dbb5679405d72c4737ec58600e9ddcf06d24c"
-  integrity sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw==
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/path-parse/-/path-parse-1.0.7.tgz#fbc114b60ca42b30d9daf5858e4bd68bbedb6735"
+  integrity sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==
 
 path-root-regex@^0.1.0:
   version "0.1.2"