message: Update compute.json to include hyperVGeneration property  for  VirtualMachineInstanceView
  Adds hyperVGeneration  which displays what HyperVisor Generation the VM Boots in, via the VirtualMachineInstanceView.
diff: "type": "string",
  "description": "The version of Operating System running on the virtual machine."
  },
  + "hyperVGeneration": {
  + "type": "string",
  + "description": "Specifies the HyperVGeneration Type associated with a resource",
  + "enum": [
  + "V1",
  + "V2"
  + ],
  + "x-ms-enum": {
  + "name": "HyperVGenerationType",
  + "modelAsString": true
  + }
  + },
  "rdpThumbPrint": {
  "type": "string",
  "description": "The Remote desktop certificate thumbprint."
  