This endpoint can be used by Angular to figure out what authentication
options to display to the user. It returns a dictionary of configuration
details that the front-end needs for each provider.
This pull request adds Google SSO support. There are two main changes:
1. Add the Google auth view resource
2. Make passwords optional when creating a new user. This allows an admin
to create a user without a password so that they can only login via Google.
kevgliss
Mike Grima
Robert Picard
kevgliss