vagrant: Add Vagrant-based development environment

vagrant: Add Vagrant-based development environment

Integrate Vagrant by way of a Vagrantfile and a simple install script.
This follows many of the instructions found in the development guide
with the exceptions of the superuser creation, which is optional, the
loading of archives, which requires per-user authentication, and the
use of virtual environments, which are unnecessary in a teardown
environment such as this.

Signed-off-by: Stephen Finucane <stephen.finucane@intel.com>