feat: add backend for multiplayer support

frontend/main.py

@@ -0,0 +1,20 @@
+'''
+    Tetris 101:
+    https://strategywiki.org/wiki/Tetris/Getting_Started
+    https://tetris.com/play-tetris
+'''
+import asyncio
+from tetri5.game import Game
+from tetri5.util import ConfigurationManager
+
+async def run_game():
+    ConfigurationManager.init()
+    Game.init()
+
+    while True:
+        Game.update()
+        Game.draw()
+        await asyncio.sleep(0)  # yield control to browser
+
+if __name__ == "__main__":
+    asyncio.run(run_game())