Add publish-to-pypi-neutron template
Add publish-to-pypi-neutron template

This is required for the various networking- projects using neutron in
their project-dependency list as the publish-to-pypi calls
release-openstack-python which, in turn, calls tox.

Change-Id: If17b36b23c30cc2d846e6c0840773f646df83bbb

openstack-infra/openstack-zuul-jobs,openstack-infra/openstack-zuul-jobs