Add OUTPUT_TRANSFORMER example

[ChenyuanZ]

Hi here.

I noticed there's no OUTPUT_TRANSFORMER example in this repo. So I created one. Please let me know if anything needs to be changed.

Here's the log of svc-orch pod:

2018-10-29 21:57:53.608  INFO 7 --- [nio-8000-exec-1] i.s.e.service.InternalPredictionService  : Requesting http://test-output-transformer-output-transformer-classifier:9000/predict
2018-10-29 21:57:53.670  INFO 7 --- [nio-8000-exec-1] i.s.e.service.InternalPredictionService  : {
  "data": {
    "names": [
      "proba"
    ],
    "tensor": {
      "shape": [
        1,
        1
      ],
      "values": [
        0.07577603016695865
      ]
    }
  }
}

2018-10-29 21:57:53.680  INFO 7 --- [nio-8000-exec-1] i.s.e.service.InternalPredictionService  : Requesting http://test-output-transformer-output-transformer-output-transformer:9001/transform-output
2018-10-29 21:57:53.686  INFO 7 --- [nio-8000-exec-1] i.s.e.service.InternalPredictionService  : {"data":{"names":["proba"],"tensor":{"shape":[2,1],"values":[0.07577603016695865,1.0]}}}

Thanks,
Chenyuan

[ukclivecox]

Thanks!