This patch adds the new microversion 1.37 in which changing the
parent_provider_uuid of a resource provider to any other provider
(except in the same subtree to avoid loops) or to null (un-parenting /
orphaning) is supported.
Story: 2008764
Task: 42131
Change-Id: I9d16ab7944d7e6ce725a892827b9508b7ba52d7c
While in Nova, placement functional test code was relegated to the
'nova/tests/functional/api/openstack/placement/' directory. This commit
moves the contents of that directory to 'placement/tests/functional/',
and removes the unnecesary directories. It also removes the files
related to Nova aggregates that were preserved in the filter_history.sh
script.
Change-Id: I5af2e074f2e1bcb90f32589fce819bd4872b6871