This change introduces an optional extracted version of the Placement
service into TripleO. This extracted version will only be required once
the Placement service is fully removed from Nova during the T cycle
(previously S but delayed) at which point the corresponding
NovaPlacement service will also be removed from TripleO.
The majority of this change is code motion between the original
NovaPlacement service and the new PlacementAPI service.
Upgrades from the original NovaPlacement service to the extracted
PlacementAPI service are not currently supported by this change and will
be worked on independently during the Train cycle.
Co-authored-by: mschuppert@redhat.com
Depends-On: https://review.openstack.org/#/c/624335/
Change-Id: I9e3287bcbe9d317f32bf6b468c6ee17f04b6fff9
555178160b