refactor: add base class for all game objects

main.py

@@ -4,10 +4,12 @@
     https://tetris.com/play-tetris
 '''
 
+# TODO review imports to make sure it is being done correctly
+
 from Tetris import Tetris
 from util.ConfigurationManager import ConfigurationManager
 
-def main():
+def main() -> None:
     ConfigurationManager.load()
 
     tetris = Tetris()