Iris - Missed subobject destruction can cause incomplete client state

From UDN assigned to [Link Removed] 

Developer repro steps

1. Modify ReplicationWriter to not be able to write all objects pending destroy or create a an object with very many subobjects that would also cause not all of them to be replicated in the same packet
2. Have an object go out of scope such that all its subobjects won't fit being replicated for destroy. It's important that the root object destroy fits in the packet.
3. Send packet
4. Notice on client how some objects, including the root object, are destroyed, but some subobjects are only detached.
5. Have the object go into scope again.
6. Send packet
7. Notice how the subobjects that were only detached aren't re-created.
8. Optionally perform GC on client for extra warnings.