-The lighter no longer shows if the player goes back to the room
-In the prison block level, the light switch is now shown properly
-Added a placeholder level for the common room level
-Renamed the game_level enum to: LEVEL_HOLDING_CELL, LEVEL_PRISON_BLOCK, LEVEL_GENERATOR, LEVEL_COMMON_ROOM
-commented the walls in holding cell level and unlocked the door in generator level for debug purposes, you can uncomment them if you like