Create patch abandonment policy
Create patch abandonment policy

In order improve general housekeeping, we should establish a policy for
handling stale patches that continue to sit for the TripleO projects.

Change-Id: Ie3920b1762a6ec8aa88a8eb7511951da9eae1bbc
Co-Authored-By: Ben Nemec <4bb9322d2721abaa797f20e8e3863e6a19240e0a@redhat.com>

openstack/tripleo-specs,openstack/tripleo-specs