message: add descriptions for data ingestion
diff: ],
  "x-ms-enum": {
  "name": "DataIngestionStatus",
  - "modelAsString": true
  + "modelAsString": true,
  + "values": [
  + {
  + "value": "RespectQuota",
  + "description": "Ingestion enabled following daily cap quota reset, or subscription enablement."
  + },
  + {
  + "value": "ForceOn",
  + "description": "Ingestion started following service setting change."
  + },
  + {
  + "value": "ForceOff",
  + "description": "Ingestion stopped following service setting change."
  + },
  + {
  + "value": "OverQuota",
  + "description": "Reached daily cap quota, ingestion stopped."
  + },
  + {
  + "value": "SubscriptionSuspended",
  + "description": "Ingestion stopped following suspended subscription."
  + },
  + {
  + "value": "ApproachingQuota",
  + "description": "80% of daily cap quota reached."
  + }
  + ]
  }
  }
  }
  