Control Manager Demo

[mstop4]

• [x] init_steam_deck_info
• [x] is_on_steam_deck
• [x] get_steam_deck_gamepad_index
• [x] add_player
• [x] get_player
• [x] set_binding
• [x] remove_binding
• [x] reset_all_bindings
• [x] get_bindings
• [x] set_gamepad_slot
• [x] get_control_state
• [x] process_input
• [x] clear_all_input

[mstop4]

Done