Add stackforge/puppet-* to git/lp project map

The puppet-openstack project wishes to manage all puppet modules
hosted on stackforge in the same Launchpad project to ease management.

This patch adds the required mapping for Gerrit to find and update bugs
in the appropriate Launchpad project.

Change-Id: I59cf52ba22e0e16fdceb15f790487c62ec77d144
Reviewed-on: https://review.openstack.org/29404
Reviewed-by: James E. Blair <corvus@inaugust.com>
Approved: Jeremy Stanley <fungi@yuggoth.org>
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Tested-by: Jenkins