message: add traceLevel, continueOnError, and runConcurrently properties to Dataflow activity properties
diff: "type": "object"
  }
  }
  + },
  + "traceLevel": {
  + "description": "Trace level setting used for data flow monitoring output. Supported values are: 'coarse', 'fine', and 'none'. Type: string (or Expression with resultType string)",
  + "type": "object"
  + },
  + "continueOnError": {
  + "description": "Continue on error setting used for data flow execution. Enables processing to continue if a sink fails. Type: boolean (or Expression with resultType boolean)",
  + "type": "object"
  + },
  + "runConcurrently": {
  + "description": "Concurrent run setting used for data flow execution. Allows sinks with the same save order to be processed concurrently. Type: boolean (or Expression with resultType boolean)",
  + "type": "object"
  }
  },
  "required": [
  