This patch implements an initial set of jobs intended to match
the current job execution method. It does not intend to improve
how the jobs are executed - only to replicate what is currently
in openstack-infra/openstack-zuul-jobs and provide the platform
to iterate on.
Change-Id: I9763a35b0177693bce2904f0c9a0f70408c5d4de
c69d80c4eb