Option to run osa playbooks from path
Option to run osa playbooks from path

Add ability to run openshift-ansible playbooks from local checkout
rather than from the openshift-ansible container image. This assume you
have all the dependencies installed on your undercloud, which should be
the case already.

Change-Id: I23c8d262606732f0a9340d43e307a5a247c93378

openstack/tripleo-common,openstack/tripleo-common