Add python33 tests to all openstack python clients
Add python33 tests to all openstack python clients

* modules/openstack_project/files/zuul/layout.yaml: Run non voting
python33 tests in the check queues of every OpenStack python client.

Change-Id: I0018efd5451fa9bbbbe9a70ff608c45e93f36553

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