Cold migrate and resize can now get the Spec object and pass it
down the wire to the conductor so that it could use it for the
move.
Partially-Implements: blueprint check-destination-on-migrations-newton
Co-Authored-By: Pawel Koniszewski <pawel.koniszewski@intel.com>
Change-Id: Ic3968721d257a167f3f946e5387cd227a7eeec6c