Update README with versioning details

Updated TODO list in README.md

Modify install.sh for grpcio and toolkit updates

Modify grpcio installation command in install.sh

Changed config directory layout

New PPO config manager functional

Preparing for a config version change, using the builder pattern (v2) over the recursive one (v1).

Add support for inverse dynamics PPO and conditional visual environments like GridWorld

Update README.md

Create LICENSE

minor changes

Changed README and other minor changes, everything up until Walker finished in basic environments

Removed experiments folder

Minor config changes for huggingface

Added more user level stuff, quickstart.ipynb, play.py, install.sh