corosync: add parameter for settle waiting
corosync: add parameter for settle waiting

Add parameters to change exec values for timeout, tries and try_sleep.
Set default values like old model to keep backward compatibility.
Signed-off-by: Emilien Macchi <d605a501dec15c980af71d9dfebf4b595ab6da1f@enovance.com>

RedHatEMEA/puppet-pacemaker,openstack/puppet-pacemaker,OrdnanceSurvey/puppet-pacemaker,openstack/puppet-pacemaker,redhat-cip/puppet-pacemaker,gwdg/puppet-pacemaker,sepulworld/puppet-pacemaker,cwolferh/puppet-pacemaker,sepulworld/puppet-pacemaker,cwolferh/puppet-pacemaker,redhat-cip/puppet-pacemaker,OrdnanceSurvey/puppet-pacemaker,gwdg/puppet-pacemaker,RedHatEMEA/puppet-pacemaker,openstack/puppet-pacemaker,openstack/puppet-pacemaker