Started decoupling pygame gui from simulator

...d_simulator/game_content/layouts/godot_test_layout.layout

overcooked_simulator/game_content/layouts/split.layout

overcooked_simulator/game_server.py

overcooked_simulator/gui_2d_vis/overcooked_gui.py

overcooked_simulator/main.py

overcooked_simulator/overcooked_environment.py

overcooked_simulator/simulation_runner.py

overcooked_simulator/websocket_connector.py

setup.py