LPS-32583 Create initial version (dummy framework) for Membership policies
LPS-32627 Check membership policy everytime the user signs in
LPS-32583 source formating - keep name consistent
LPS-32627 Rename getMandatorySites to getMandatoryGroups (backend is Group, frontend is Site). Remove exceptions that are not thrown.
LPS-32627 Autogenerated
LPS-32627 Source formatting
LPS-32627 Rename property to "users.membership.policy"