Add test for ceilometer deployment with mongo

Add verification for ceilometer deployment with mongo:
* deploy simple with mongo(mongo on separate node)
* deploy multinode with mongo (mongo with other roles)
* deploy ha (mongo on separate node)
* deploy ha multinode(mongo with controllers)

Change-Id: I60553788a3ce277bf1b9db262b23e71a2969918f
Closes-bug: #1277037
Merge "Add test for ceilometer deployment with mongo"