message: fix the swagger issue that type of enum is missing
diff: "Disabled",
  "Warned"
  ],
  + "type": "string",
  "readOnly": true,
  "x-ms-enum": {
  "name": "BillingProfileStatus",
  "SpendingLimitReached",
  "SpendingLimitExpired"
  ],
  + "type": "string",
  "readOnly": true,
  "x-ms-enum": {
  "name": "StatusReasonCode",
  "Off",
  "On"
  ],
  + "type": "string",
  "readOnly": true,
  "x-ms-enum": {
  "name": "SpendingLimit",
  "SpendingLimitReached",
  "SpendingLimitExpired"
  ],
  + "type": "string",
  "readOnly": true,
  "x-ms-enum": {
  "name": "BillingProfileStatusReasonCode",
  "On"
  ],
  "readOnly": true,
  + "type": "string",
  "x-ms-enum": {
  "name": "BillingProfileSpendingLimit",
  "modelAsString": true
  "AzureMarketplace",
  "AzureSupport"
  ],
  + "type": "string",
  "readOnly": true,
  "x-ms-enum": {
  "name": "InvoiceType",
  