Add new user information

[SUPERCILEX]

Fixes #1242

[samtstern]

@SUPERCILEX thanks for doing this! Code LGTM.

Just wondering: what criteria did you use to find all the places where you care about the AuthResult? Is there any way we can generalize some of what you did so that we don't forget to pass through information from the AuthResult in future additions / refactors?

[SUPERCILEX]

@samtstern Yeah, I did a find on all calls to Resource#setResult and then looked for ones in a Firebase auth callback. I agree that we should generalize this so I added a base class with a helper method, but I don't see a way of enforcing that it's called instead of setResult directly. 🤷‍♂️

[samtstern]

@SUPERCILEX this looks better to me, thanks for the refactor!