Remove Hyper-V dependency in the Windows Cinder Volume Driver

Currently, the Windows Cinder Volume driver depends on the Hyper-V
feature in order to be able to access the WMI namespaces that
are used for some of the volume related operations.

Those WMI calls must be urgently replaced with Win32 calls in order
to provide CI tests performed on Windows Storage Server edition.

Change-Id: Ib4b8bccee3c7ee86e6cc44e1b16d20d455e61612
Closes-Bug: #1346496
Merge "Remove Hyper-V dependency in the Windows Cinder Volume Driver"