Puppet provisioner
Puppet provisioner

This uses:

- Puppet repo parallel to this dir.
- Extdata from development repo, per previous dev VM.

It throws out a lot of warnings about Ruby scoping and deprecations, and
Puppet storeconfigs, so we might decide not to use this.

alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet,alphagov/govuk-puppet