message: Add new enum values to DataBindingMode
diff: "enum": [
  "Mount",
  "Download",
  - "Upload"
  + "Upload",
  + "ReadOnlyMount",
  + "ReadWriteMount",
  + "Direct",
  + "EvalMount",
  + "EvalDownload"
  ],
  "type": "string",
  "x-ms-enum": {
  