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: I673164f8b072c3ee0afd37adc7b1ed6fa8a6eb41
af2965a310