Skeleton service running as NETWORK SERVICE

Trival service based on the walkthrough at
http://msdn.microsoft.com/en-us/library/zt39148a%28v=vs.110%29.aspx
Uses Debug.WriteLine rather than Event Log to avoid the need to set
access rights for the relevant keys
Includes PowerShell script for file ACL setting, a script of manual test
steps, and sample coverage output