Added simple samples that exercise autoscaling

Added trivial templates that can be used to exercise basic
scaling group functionality: the mechanics of the scaling
actions.  These examples are deliberately spare, to
minimize dependencies.

Change-Id: Iddd63acc629d617f861215c12e20d250c53edd11
Partial-Bug: 1305425
Merge "Added simple samples that exercise autoscaling"
HOT for IIS with Drupal

It deploys a new Drupal 7 web site on a server with IIS
and PHP 5.4 configured. Web site uses a local database on
SQL Server 2008 R2 SP2 Express

Required tools are downloaded from the internet using
official links. SHA1 hashes are computed for the downloaded files
and compared with the expected hashes to ensure file integrity.

The unit tests for the user data scripts are written using
Pester 3.0

Change-Id: Ia9c12db0a92fc4f39be9056c67471eb8c136a86a
Partially-Implements: blueprint windows-instances