Convert allNodesConfig properties to composable jinja2
Convert allNodesConfig properties to composable jinja2

To support custom roles we need to generate these lists of role
specific data.

Change-Id: Ide97cd57d1c07f7f7ff260ff7a6bbe2b71753bd0
Partially-Implements: blueprint custom-roles

openstack/tripleo-heat-templates,dprince/tripleo-heat-templates,trozet/opnfv-tht,trozet/opnfv-tht,openstack/tripleo-heat-templates,trozet/opnfv-tht,dprince/tripleo-heat-templates