add jobs to publish library from governance repo
add jobs to publish library from governance repo

We've recently added code to the openstack/governance repository to
make a public API for consuming the data that, to make that easier and
to make it easier for us to change the data format over time. This patch
adds the release job needed to publish releases of the code to PyPI.

Change-Id: Ib180ff2af737e2eeab5f61b773f453357fafdede
Signed-off-by: Doug Hellmann <0798ebecfb7bc4dfb9d0445c2fa030eb64e1fa1c@doughellmann.com>

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