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.
Depends-On: I0391ec310c4eede436011a48490e3c524c8ddf4d
Change-Id: I2ba5bce479a33bc4369c8034e28cf2bc8cfb5ac1
