
Adds a new variable, 'kolla_enable_openstack_core', which can be set a default value for whether the default OpenStack services are enabled. This includes Glance, Heat, Horizon, Ironic, Keystone, Neutron and Nova. It is 'true' by default. Change-Id: I7768d3a92272d4353522dbf1a96f124225f4d73d Story: 2007524 Task: 39315