Support HTTP BasicAuth as alternative authentication

## What is your suggestion?

Support HTTP BasicAuth for authenticating the user with a provided username and password

## Why do you want this feature?

I have a reverse proxy setup where the authentication is handled at the proxy level, and a generated or pre-created Basic Auth is used to communicate with the back-end server, which may be still over a network and so HTTPS + Basic Auth is preferred over no authentication.

## Are there any workarounds to get this functionality today?

None, no authentication does not pass security requirements and cookie-based (UI driven login) does not work in this context.

## Are you interested in submitting a PR for this?

Yes