Spot OpenAI Gym Environment

First release! Currently, I provide the ability to test out your own gaits (or to use my Bezier implementation) using env_tester.py. You may also use spot_ars.py and spot_ars_eval.py as a template for training and testing scripts respectively. Feel free to check out the various RL agent libraries (ars_lib, td3_lib, sac_lib, ppo_lib)for use, or add your own via Pull Request!

There is also a ROS implementation for joystick integration.

Documentation: https://spot-mini-mini.readthedocs.io/en/latest/?badge=latest