Bug 37392: (follow-up) Limit a borrower not in a group and fix tests

Bug 37392: (follow-up) Limit a borrower not in a group and fix tests

The previous patches took into account all the groups for a patron, but missed the case where a patron
didn't have permission to see outside their library, and their library is not in a group.

Code updated and a test added.

Other tests adjusted to ensure the feature to limit patrons was set in those groups.

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>