Add installation and configuration of nodepool.

Includes configuration/setup for http proxies and basic setup to
run cinder/tempest tests on real storage hardware.
Includes some workarounds for patches not yet commited upstream
 (and some may never be commited):
https://review.openstack.org/#/c/87384/
https://review.openstack.org/#/c/96539/
https://review.openstack.org/#/c/96551/
https://review.openstack.org/#/c/93141/

Still todo:
1. Documentation updates
2. Clean up portions that belong in this repo, and private data repo.