Easing functions in standard C99.

To build on Raspberry Pi, Debian or Ubuntu (16.04 LTS) system:

sudo apt-get install cmake git
git clone https://github.com/octaspire/easing.git
cd easing/build
cmake ..
make

To build on Arch Linux (Arch Linux ARM) system:

sudo pacman -S cmake git gcc make
git clone https://github.com/octaspire/easing.git
cd easing/build
cmake ..
make

To run the unit tests:

test/octaspire-easing-test-runner