Initial import of ovirt-hosted-engine-setup

This package implements Self Hosted Engine
feature setup. It's still a WIP so it's not complete yet.
You can learn more about this fetaure on the wiki page:
http://www.ovirt.org/Features/Self_Hosted_Engine

Change-Id: I45c07777660eeb538298f45e6b95ac231b2362e2
Signed-off-by: Sandro Bonazzola <sbonazzo@redhat.com>
Signed-off-by: Alex Lourie <alourie@redhat.com>
Signed-off-by: Yedidyah Bar David <didi@redhat.com>