Run tripleo-ci-centos-7-nonha-multinode in Heat's experimental pipeline
Run tripleo-ci-centos-7-nonha-multinode in Heat's experimental pipeline

Run tripleo-ci-centos-7-nonha-multinode job as non-voting in Heat's
experimental pipeline.
It will bring interesting feedback to Heat developers, as Heat is a core
piece of TripleO.

Change-Id: I9855c4e0156afa84dae1f14e6add336be0fc356b

Tesora/tesora-project-config,Tesora/tesora-project-config,openstack-infra/project-config,openstack-infra/project-config