API: Move to ModelManager

This is a shared module  which manages the model container and provides
extra utility functions around it to help slim down the API.

Signed-off-by: kingbri <bdashore3@proton.me>

start.py

@@ -1,4 +1,5 @@
 """Utility to automatically upgrade and start the API"""
+import asyncio
 import argparse
 import os
 import pathlib
@@ -66,4 +67,4 @@ if __name__ == "__main__":
     # Import entrypoint after installing all requirements
     from main import entrypoint
 
-    entrypoint(convert_args_to_dict(args, parser))
+    asyncio.run(entrypoint(convert_args_to_dict(args, parser)))