Add publish-to-pypi template to placement
Add publish-to-pypi template to placement

We'd like to make an early release of a working placement from the
extracted repo so it is time to add the publish-to-pypi template to
make that possible.

The pypi side of things is ready:
https://pypi.org/project/openstack-placement/

Change-Id: I7e2f4af868c2f31caed828ffc4417e25710eb26e

openstack-infra/project-config,openstack-infra/project-config