Redesign subid feature
Subordinate ids are now handled by a new plugin class and stored in
separate entries in the cn=subids,cn=accounts subtree.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Francois Cami <fcami@redhat.com>
Reviewed-By: Rob Crittenden <rcritten@redhat.com>