Replace the extra role requirements from
quickstart-extras-requirements.txt with a single repository upstream
(tripleo-quickstart-extras) consisting of the merged history of all
previously used roles.
Further changes to these roles are to be submitted to this
tripleo-quickstart-extras repo through review.openstack.org instead of
review.gerrithub.io.
Several role name changes occured during this transition, which this
change also corrects in playbooks hosted within this repository.
Change-Id: I9b532b8f63d68d9791f7403c9d66558f8221d980