oslo.messaging: Add experimental functional tests

This changes create 3 new jobs for oslo.messaging to
run the functional tests suite on 3 different drivers
rabbit, qpid and amqp 1.0.

Depends on: https://review.openstack.org/#/c/130437/

Change-Id: Ifa0561e24424b10a626e440d160b389a704f29eb
Merge "oslo.messaging: Add experimental functional tests"