port test_services into nova v3 part1

This changeset only copies the v2 files into the appropriate v3
directories unchanged. This is being tried in order to make
reviewing of the porting easier as gerrit will display only what
is actually changed for v3 rather than entirely new files.

Partially implements blueprint nova-v3-api-tests

Change-Id: Id38c7fd4bae451c2489385e485e637f31ccfb481
Merge "port test_services into nova v3 part1"