Add optional services option in globals.yml
Add optional services option in globals.yml


Closes-Bug: #1563642
Change-Id: Id047dbcd438edc748fbe928cabbdbc1060c7c3de

nihilifer/kolla,tonyli71/kolla,coolsvap/kolla,dardelean/kolla-ansible,tonyli71/kolla,coolsvap/kolla,stackforge/kolla,GalenMa/kolla,stackforge/kolla,mandre/kolla,openstack/kolla,GalenMa/kolla,stackforge/kolla,mrangana/kolla,mrangana/kolla,mandre/kolla,mandre/kolla,nihilifer/kolla,rahulunair/kolla,intel-onp/kolla,rahulunair/kolla,intel-onp/kolla,openstack/kolla,dardelean/kolla-ansible,dardelean/kolla-ansible,coolsvap/kolla