Add Heat and Ironic Bay placeholder Handlers

The Ironic backend boots a basic image which contains k8s and
docker as well as the APIs automatically configured to start
on boot.

The Heat backend boots a Heat template using Nova to provide k8s
and docker fully preconfigured.

Change-Id: I516ba00d7850f45ad4d17e559690ee904b786f18
Merge "Add Heat and Ironic Bay placeholder Handlers"