Add openstack upgrade functions

 * applyOpenstackAppsStates - apply all openstack states
   in the given order on specified node
 * runOpenStackUpgradePhase - run specified upgrade phase for
   OpenStack services on given node
 * getOpenStackUpgradeServices - return list of OpenStack application
   that are enabled on specified node according to theirs priorities.

Change-Id: I83f202d8bdf4ae530932f7b0911b55885f718434
1 file changed