HOT for Windows Active Directory Controller

The template deploys an Active Directory forest domain controller.

As there is the need of a Windows reboot after the install finishes,
exiting from the powershell script with the code 1001 signals to
cloudbase-init to trigger a reboot.

Change-Id: Ie171d55ffa69bb4c4f7381defd70a10d1c83213d
Co-Authored-By: Ionut Balutoiu <ibalutoiu@cloudbasesolutions.com>
Partially-Implements: blueprint windows-instances