Build times plugin JSON format

build-times-json-format.json

{
    "success": true,
    "count": 663,
    "measurements": [
        {
            "timestamp": 1558000984082,
            "order": 0,
            "task": ":clean",
            "success": true,
            "did_work": true,
            "skipped": false,
            "ms": 8,
            "date": "2019-05-16T10:03:04,082Z",
            "cpu": "Intel(R) Core(TM) i7-7700HQ CPU @ 2.80GHz",
            "memory": 17179869184,
            "os": "Mac OS X 10.14.5 x86_64"
        },
        ...
    ]
  }