Adds stackforge/puppet-openstack-specs project

Adds the stackforge/puppet-openstack-specs project to Stackforge.
The puppet-openstack-specs project follows the model of
nova-specs and neutron-specs to add specification and blueprint
review to Gerrit for the planning of the puppet-openstack modules.

Change-Id: Ica026196dcfa59f6f91b5a535589a08aa9540163
Merge "Adds stackforge/puppet-openstack-specs project"