Add User Accounts and authentication

[apjanco]

See
https://medium.com/data-rebels/fastapi-google-as-an-external-authentication-provider-3a527672cf33
https://github.com/aliev/aioauth

[apjanco]

https://pypi.org/project/fastapi-cloudauth/
https://auth0.com/
https://traefik.io/resources/traefik-fastapi-kuberrnetes-ai-ml/?utm_campaign=Influencer%3A%20Sebastian%20Ramirez%2C%20FastAPI%20&utm_medium=email&_hsmi=113023171&_hsenc=p2ANqtz-_E_dbD9kTm08iSvXC8kTAPOduY23sKuTTx7wzL-zH7ZJVBz6653G5syfoRBbvf9ijf-QyJeQTwUsG9ZWvq26ZiHiISGQ&utm_content=113011901&utm_source=hs_email