workaround for dealing with WinRM 3.0 and newer

I added a check to see what version of WinRM is in play and if the version is greater than 2, I added a powershell script to return the required data to match the original wmi query.  The current winrm gem doesn't properly query all the WMI classes (API's changed some it appears).

This should add support for VMs running WMF3 and 4, Windows 8/8.1, Server 2012, and Server 2012 R2.