Add pacemaker ocf resources support.

OCF RA's are shell scripts that provide resources in a different standard to LSB or systemd, 
those are used in neutron-netns-cleanup and neutron-ovs-cleanup for rhos5+rhel7/6

https://github.com/fabbione/rhos-ha-deploy/blob/master/rhos5-rhel7/mrgcloud-setup/RHOS-RHEL-HA-how-to-mrgcloud-rhos5-on-rhel7-neutron-n-latest.txt#L100

Best regards,
Miguel Ángel