Refactor game state and HUD:

- Removed the State class as it was no longer needed.
- Updated the MazeData class to improve output formatting.
- Added new assets for HUD background and foreground.
- Implemented Inventory class to manage crafting and item selection.
- Created HUDLayer class to handle drawing the HUD and inventory interactions.

game/maze.rb

@@ -4,7 +4,6 @@ class Maze
   def initialize
     @maze = MazeData.new(80, 80)
     @spritesheet = Gosu::Image.load_tiles("assets/images/walls.png", 20, 40, retro: true)
-    puts @spritesheet.size
 
     $bus.on(:maze_size) { [80, 80] }