Example Django Authlib2 App

After more debugging than I'd care to admit, I have made a (barely) functioning Django Authlib2 provider w/ the Authorization Code Grant strat.

I've seen from prior discussion that there was some interest in this that got siloed - I know that the docs are incomplete here ( as I ran into a few errors that took me time to debug ), so I wanted to begin discussion about what should a Django provider example look like.