Various OpenSpiel wrapper improvements and multiple game UIs.

[jhtschultz]

OpenSpiel wrapper improvements:

• Moves OpenSpiel game and state objects from global variables to env
  instance variables.
• Stores complete state and action history in env.info.
• Cleaner logic for registering envs.
• Open Spiel proxies are loaded by default if they exist and are
  accessed without the {game_name}_proxy suffix.
• Adds logging.
• Removes remaining references to GameMaster agent, particularly in
  default HTML renderer.

Adds chess, Go, poker, and tic-tac-toe UIs.

• Credit to @chris-prichard for Go UI (Add Go board renderer with interactive demonstration #347).

[bovard]

Tests are failing

__________________________________________ test_envs_load __________________________________________

    def test_envs_load():
>       envs = open_spiel_env._register_open_spiel_envs()
E       AttributeError: module 'open_spiel.open_spiel' has no attribute '_register_open_spiel_envs'

kaggle_environments/envs/open_spiel/test_open_spiel.py:7: AttributeError
___________________________________ test_tic_tac_toe_playthrough ___________________________________

    def test_tic_tac_toe_playthrough():
>       envs = open_spiel_env._register_open_spiel_envs(["tic_tac_toe"])
E       AttributeError: module 'open_spiel.open_spiel' has no attribute '_register_open_spiel_envs'

kaggle_environments/envs/open_spiel/test_open_spiel.py:12: AttributeError
========================================= warnings summary =========================================

[bovard]

LGTM, thanks!