c085db23d7
Portfolio invitations do not associate a user entity until the invitation has been accepted. User info, including DOD ID, is held on the invitation itself. When a user accepts and invitation, their user entry is associated with the corresponding `portfolio_role` entry. The same change will be applied to `application_role` and application invitations. For now, small changes have been made to application-related methods so that that flow works as-is.
Generic single-database configuration.