tripleo/scenario004: add manila files
tripleo/scenario004: add manila files

TripleO Scenario004 now support Manila, so we increase testing coverage.

1. Add manila files to run scenario004 when needed
2. Run TripleO scenario004 in puppet-manila gate

Change-Id: Id2e9eef226ebbd4b576e0517c31eae72c3389dac
Depends-On: I70515c5b9ce2668a684649ecd40421b69078ee83

openstack-infra/project-config,openstack-infra/project-config