nnadeau/pybotics: 0.4.0

A big refactor of pybotics Many breaking changes to how models are designed and used The goal was to clean technical debt and simplify the architecture Added pybotics.__version__ CODE_OF_CONDUCT.md CI helper scripts docs Fixed New PyPI test server in .travis.yml Changed All modules have been significantly updated Split requirements Typing now heavily relies on collections.abc Simplified .travis.yml configuration Simplified README.md More static testing Simplified setup.py 100% test coverage requirement Removed Inverse kinematics (IK) for the moment README.rs