Add missing xinetd/rsync container for Swift
Add missing xinetd/rsync container for Swift

Swift object replication relies on the rsync server, which is run by
xinetd. This patch adds the missing container and configuration. Note
that xinetd needs bind to a privileged port (873) and has to be started
as root therefore.

Change-Id: I7655c9dd116c0130035d8a2fae81148171ae6448

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