Identity: consider adding oAuth / LDAP

[gerardwebb]

https://github.com/greenpau/caddy-auth-portal

The current system uses email password.

Adding Oauth with MFA ( multi factory authentication) will harden the system.
Adding LDAP will allow larger orgs to use the system using their existing LDAP

• how that maps to the Orgs/ Project, and the roles associated with it needs to be determined