FFU support for ceph_nfs
FFU support for ceph_nfs

This change introduces the steps needed to dump the set
of playbook used to perform the ceph-nfs update.

Depends-On: I89c848bdae1b997b38a5164302acdcca94619471
Change-Id: I45e72bb598ef2157531919173e94ab36eb98ad16

openstack/tripleo-heat-templates,openstack/tripleo-heat-templates