domain name information should be in VIM configure, which is
different from keystone configuration in tacker.conf.
Also domain name is prefered to domain id.
Change-Id: Iec492e55ff763f92304c129d2373e544269f6271
Partial-bug: #1603851
Tacker TOSCA templates are currently buried under tacker/devstack.
These samples templates are applicable for the whole project and they
are not related specifically to the devstack installation. Also,
segregate the new TOSCA parser based templates from the legacy ones
for easier deprecation when the time comes.
Change-Id: I35547335baf6827e6b7b10702d05276343d8ce75
Closes-Bug: #1579251