Organised classes and images into folders

Classes/aStar.py

Classes/bfs.py

Classes/button.py

Classes/config.py

Classes/dfs.py

Classes/dijkstra.py

Classes/enemy.py

Classes/expectimax.py

Classes/game.py

Classes/main.py

Classes/maze.py

Classes/minmax.py

Classes/player.py

Classes/playerController.py

Images/blank.png

Images/button_easy.png

Images/button_hard.png

Images/button_normal.png

Images/enemy.png

Images/goal.png