feat: Start twitch user auth module.

src/twitch/authserver.py

@@ -0,0 +1,7 @@
+"""
+We want to open an aiohttp server and listen on a configured port.
+When we get a request, we validate it to be 'of twitch form',
+parse out the error or access token, state, etc, and then pass that information on.
+
+Passing on maybe done through webhook server?
+"""