Register processor as serializer listener to correctly tag remote
objects.

Change-Id: I20919b50033a3253afffbfd00283261a71884df0
Signed-off-by: Rob Adams <readams@readams.net>
Change model so that Subnet is not a forwarding behavior group.  If an
epg references a specific subnet then the there's nothing that will
resolve the parent Subnets object so it's never resolved.

Change-Id: Icc5fed47ba1d9dfb39e3af474d7477516e1fb807
Signed-off-by: Rob Adams <readams@readams.net>
Add log message when writing policy dump

Change-Id: Id0cd3fc615470ef44d98fdfbb6bb8b64df797558
Signed-off-by: Rob Adams <readams@readams.net>