Move ResourceGroup update sequence test to functional

This was largely done by I3d8b173f6ee7f77c7c1687769cb6fc19c1c61f89
This just cleans up the functional test to reuse the existing template.

Part of blueprint decouple-nested
Change-Id: Ic777e7f381968e2c93e4c737dfec0cf26229602f
1 file changed
tree: 7f9ffe020a1f8650aa77f88a043f69511fb23e06
  1. common/
  2. functional/
  3. scenario/