Run BATs against NSX-T Opaque Network environment
Run BATs against NSX-T Opaque Network environment

* Use Pool Resource to alternate against opaque network and DVS

[#143445347](https://www.pivotaltracker.com/story/show/143445347)

Signed-off-by: Zak Auerbach <84a275e6a279738f2aa78daf0002615dee69cc28@pivotal.io>

cloudfoundry-incubator/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release,cloudfoundry-incubator/bosh-vsphere-cpi-release