port some server tests 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: I4cf4187bb05ee48d867bff56ae12e6e48f615554
Merge "port some server tests into nova v3 part1"