message: Add GeoRegion property to DeletedSite model
diff: "description": "Kind of site that was deleted",
  "type": "string",
  "readOnly": true
  + },
  + "geoRegionName": {
  + "description": "Geo Region of the deleted site",
  + "type": "string",
  + "readOnly": true
  }
  },
  "x-ms-client-flatten": true
  