Update Backend for ADFS

[ryanpdaley]

Issue Addressed

This PR closes MOVE-1263 and MOVE-1265

Description

Adds the extra fields that we can currently get from ADFS to the database:

• userTitle: The title of the user within the City of Toronto
• firstName: The user's first name
• lastName: The user's last name
• department: The user's department within the City of Toronto

I'm not sure which of these will be populated within ADFS for production accounts, so they will be returned as null if they aren't defined or are blank.

There is also an issue that we were using the sub value as the unique key for a user and in local the new client_id is returning new values for this, so get duplicate values. I've tried to mitigate this by looking for an email match, and updating the user record (including the sub value) if a sub match isn't found.

Tests

All existing tests are passing, but no new tests were created for this yet.

[spencermountain]

TIL nodejs does not have a atob method. LGTM!

[mkewins]

cool!!