Changes overcloud deployment to include a block storage node
Changes overcloud deployment to include a block storage node

This patch changes the deploy-overcloud script to build the
overcloud-with-block-storage template and deploy an overcloud
with it.

rdo-management/instack-undercloud,bcrochet/instack-undercloud,agroup/instack-undercloud,agroup/instack-undercloud,bcrochet/instack-undercloud,eprasad/instack-undercloud,rdo-management/instack-undercloud,dmsimard/instack-undercloud,dpkshetty/instack-undercloud,dmsimard/instack-undercloud,eprasad/instack-undercloud,dpkshetty/instack-undercloud