[Feature Request] OpenID Connect Authentication Support

[CressyCode]

Would be fantastic to have OpenID Connect (OIDC) support on this - not having this prevents me from connecting this to Authelia and going all in on Fireshare with my server.

Thanks!

[ShaneIsrael]

I'm going to leave this open in case somebody wants to try and take it on. The only reason I myself won't is because I don't have an OIDC provider to properly test and develop the addition and its also not something that I would be able to easily bug fix if it started having issues. But if somebody that does have a provider and experience with OIDC implementations and would like to try to implement it then please do.