Created by: kopancek
This enables customers to only allow login/sign up for users that belong to specific groups.
resolves #34918
https://user-images.githubusercontent.com/9974711/171881330-a0854b13-b7c6-4bc9-96c4-b2bef72e52a5.mp4
Add another unit test to test the whole flow, not just the new method that I added.
Tested manually, tested with unit tests
To test locally, make sure to configure your local instance accordingly: https://docs.google.com/document/d/1aZD9Ccl_9p6Ctzlyhbz1mZoJfsvx-wRU4JHohGJjkIE
Push commits to the source branch or add previously merged commits to review them.
