Generic cluster properties support
Generic cluster properties support

Sometimes in certain environments we need to set specific cluster
properties to tune the control plane to that specific situation.
Tested with:
    tripleo::profile::base::pacemaker::cluster_properties:
      test:
        property: shutdown-escalation
        value: 6m
        tries: 5
      test2:
        property: priority-fencing-delay
        value: 10
        tries: 5
      test3:
        property: startup-fencing
        value: false
        tries: 5

And obtained the correctly set properties:
[root@controller-0 hieradata]# pcs property
Cluster Properties:
...
 priority-fencing-delay: 10
 shutdown-escalation: 6m
 startup-fencing: false

Change-Id: Iebd1ae24a69fb0bdc5f7f7c75a1a79e9c608ba96

openstack/puppet-tripleo,openstack/puppet-tripleo,openstack/puppet-tripleo