Create Jobs via HTTP endpoint

[olttwa]

Goose jobs require around 6 types of data:

1. Fully-qualified function-symbol
2. Args
3. Timestamp
4. Broker config
5. Retry config
6. Batch/Cron config

When accepting Job details via JSON or other serializing format, it is possible to construct all the above data.
However, args will have one limitation: their data-type will be limited to string, number and boolean.

[olttwa]

This feature was suggested/requested by @ejstembler