Updates tripleo-heat-template cherry-picks
Updates tripleo-heat-template cherry-picks

This patch updates the heat-templates for tuskar usage to the latest
refs and adds a cherry-pick for adding ExtraConfig to storage
templates.

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