[Request] Add ability to filter instance status history by eventType

[ChrisRomp]

On the Get Instance Status API there's a showHistory parameter which returns a historyEvents array for the instance. Would it be possible to add a $filter query parameter or an explicit includeEventType type of parameter to enable filtering of the historyEvents result to only specific types of events?

Current example response:

{
  "createdTime": "2018-02-28T05:18:49Z",
  "historyEvents": [
      {
          "EventType": "ExecutionStarted",
          "FunctionName": "E1_HelloSequence",
          "Timestamp": "2018-02-28T05:18:49.3452372Z"
      },
      {
          "EventType": "TaskCompleted",
          "FunctionName": "E1_SayHello",
          "Result": "Hello Tokyo!",
          "ScheduledTime": "2018-02-28T05:18:51.3939873Z",
          "Timestamp": "2018-02-28T05:18:52.2895622Z"
      },
      {
          "EventType": "TaskCompleted",
          "FunctionName": "E1_SayHello",
          "Result": "Hello Seattle!",
          "ScheduledTime": "2018-02-28T05:18:52.8755705Z",
          "Timestamp": "2018-02-28T05:18:53.1765771Z"
      },
      {
          "EventType": "TaskCompleted",
          "FunctionName": "E1_SayHello",
          "Result": "Hello London!",
          "ScheduledTime": "2018-02-28T05:18:53.5170791Z",
          "Timestamp": "2018-02-28T05:18:53.891081Z"
      },
      {
          "EventType": "ExecutionCompleted",
          "OrchestrationStatus": "Completed",
          "Result": [
              "Hello Tokyo!",
              "Hello Seattle!",
              "Hello London!"
          ],
          "Timestamp": "2018-02-28T05:18:54.3660895Z"
      }
  ],
  "input": null,
  "customStatus": { "nextActions": ["A", "B", "C"], "foo": 2 },
  "lastUpdatedTime": "2018-02-28T05:18:54Z",
  "output": [
      "Hello Tokyo!",
      "Hello Seattle!",
      "Hello London!"
  ],
  "runtimeStatus": "Completed"
}

[ChrisRomp]

Wrong repo. I'll move this request.

[ChrisRomp]

Reopened at: https://github.com/Azure/azure-functions-durable-extension/issues/2261