Players can press key instead of button

overcooked_simulator/__main__.py

overcooked_simulator/example_study_server.py

..._simulator/game_content/layouts/test_layouts/large.layout

...imulator/game_content/layouts/test_layouts/large_t.layout

...mulator/game_content/layouts/test_layouts/rot_test.layout

..._simulator/game_content/layouts/test_layouts/split.layout

...oked_simulator/game_content/study/environment_config.yaml

...simulator/game_content/study/environment_config_dark.yaml

overcooked_simulator/game_content/study/item_info.yaml

overcooked_simulator/game_content/study/study_config.yaml

overcooked_simulator/gui_2d_vis/gui_theme.json

overcooked_simulator/gui_2d_vis/overcooked_gui.py