Create Gymnasium environment: grid-world from csv

[jgvictores]

Create Gymnasium (gymnasium>=0.26.3) environment: grid-world from csv.

Help:

• https://gymnasium.farama.org/tutorials/environment_creation
• https://github.com/jgvictores/gymnasium-examples (fork of https://github.com/axb2035/gym-examples (fork of https://github.com/Farama-Foundation/gym-examples )
• https://github.com/roboticslab-uc3m/alma-playground/tree/7a59817d20a9c57e1dd2c996bc05543b9107e5eb
• https://github.com/Farama-Foundation/Gymnasium-Robotics
• https://github.com/Farama-Foundation/Minigrid

[jgvictores]

WIP as of https://github.com/roboticslab-uc3m/gymnasium-playground/commit/8a5d61e2d5043087a7e4e31c978da2d66749226b (pending: render)

[jgvictores]

WIP added rendering as of https://github.com/roboticslab-uc3m/gymnasium-playground/blob/1da207f7de5e85e4be4201e056278cfed6009659/gridworld/gymnasium_playground_gridworld/envs/grid_world.py

Pending:

• [x] (maybe) improve the transition logic of step.
• [x] (maybe) re-think transposition in text vs pygame
• [x] ~Recover clip~ Treat IndexError

[jgvictores]

[x] (maybe) improve the transition logic of step.

Done via https://github.com/roboticslab-uc3m/gymnasium-playground/commit/8ac9020a2061b23601d4f93a7e3327cb96687987

[jgvictores]

[x] (maybe) re-think transposition in text vs pygame

Done via https://github.com/roboticslab-uc3m/gymnasium-playground/commit/c9583d0742387afafa8550d6ff72c110edca797b

[jgvictores]

• [x] ~Recover clip~ Treat IndexError

Done via https://github.com/roboticslab-uc3m/gymnasium-playground/commit/4a6d331c2eb761f983de1b1f9e77698b3dccd8a3

[jgvictores]

Merged at https://github.com/roboticslab-uc3m/gymnasium-playground/commit/8fa9cbbac4988d6d5266a2b82cde0ac64e0a10fe