Import TripleO CI environments from tripleo-ci into THT for some
reasons:
1) THT is branched while tripleo-ci is not. Having them here would allow
to make scenarios able to evolve over the releases without adding
more scenarios.
2) Help our developers to run TripleO CI scenarios themselves from THT
by exposing the templates here.
The whole discussion is here:
http://lists.openstack.org/pipermail/openstack-dev/2016-November/107816.html
Change-Id: I3527a64c0c8f56ca77115d32849fa23fe710112d