Implemented a rudementary authentication method using Keycloak as the
IdP - still very barebones, but login does function. Next steps will
include a Docker Compose file (most likely) for managing this
integration. The application will work fine without setting up the
integration however, and will just throw a warning message. Setup should
be relatively self explanatory, but some documentation is TBD, along
with some automation when spinning up for the first time. Still not
super happy with the implementation.
Expanded the README with more up-to-date data and elaboration on
providers, which may have been a bit unclear before. Also added a few
configuration examples for each provider, with comments.
