Adding neutron support in openstack-compute

Adding neutron support. It is a search and replace of
quantum with neutron in all the files. Also, set 8.0.0
as the version in metadata.rb. The version was not bumped
when stable/grizzly was branched. Also, updated the
dependency cookbook versions in metadata.rb.

Change-Id: Ia53ffcb0a6fbf322784fb6409adc5386b3e7dd40
Implemented: blueprint neutron-support