Add puppet-gerrit as split out module
Add puppet-gerrit as split out module

The spec:
http://specs.openstack.org/openstack-infra/infra-specs/specs/puppet-modules.html

This patch should only be approved after arranging for a system-config
core to ensure there are no outstanding changes and to approve the
related module removal patch within a short time.

Needed-By: Idb0c6710ef98c033a64f6eb56e73b987e9026f08
Change-Id: Id7e8173438ed065bc64d120a0468c112ac2a3227

noorul/os-project-config,open-switch/infra_project-config,coolsvap/project-config,anbangr/osci-project-config,noorul/os-project-config,open-switch/infra_project-config,dongwenjuan/project-config,citrix-openstack/project-config,openstack-infra/project-config,Tesora/tesora-project-config,citrix-openstack/project-config,Tesora/tesora-project-config,dongwenjuan/project-config,openstack-infra/project-config,coolsvap/project-config,anbangr/osci-project-config