Add ``project_id`` to response body of list groups with detail and show
group detail APIs.
Depends-On: I190cc67a001ffce2a533480e6e39e26cd3f981df
Change-Id: I3bc34a30b02f8a1ec2c5fecbcde6bd369c8e4a76
Implements: blueprint add-project-id-to-group-response