Add ability to create and delete basic snapshots in thed hyperv driver.

Changes in v2:
 - re-word error message about configuring disks / memory for snapshots
 - split out the utility function for extracting async method output params

Jonathon Jongsma (4):
  hyperv: Add snapshot related WMI class definitions
  hyperv: Implement domainSnapshotDelete()
  hyperv: Add a utility function for getting method output params
  hyperv: Implement domainSnapshotCreateXML()

 src/hyperv/hyperv_driver.c            | 129 ++++++++++++++++++++++++
 src/hyperv/hyperv_wmi.c               | 139 ++++++++++++++++++++++++++
 src/hyperv/hyperv_wmi.h               |  17 ++++
 src/hyperv/hyperv_wmi_generator.input |  42 ++++++++
 4 files changed, 327 insertions(+)

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2.53.0