created the maze walls and collision detection

the hardest part was creating a maze with a solution. I realized I didn't know how to do that and had to google how to create a maze.
Once I had a maze generator, I was unsure of whether there was a solution to it. Figuring that out took some time. Then I changed the look to be more digestible. I chose a maze game because I thought it would be simple, but it didn't feel simple.

wall.py

@@ -0,0 +1,8 @@
+class Wall:
+    """
+    A simple wall tile. It just sits on the board and blocks movement.
+    """
+    character = "█"   
+    def __init__(self, position):
+        # position is a tuple (x, y)
+        self.position = position