Update package from expanse, including PS train and inference

✨ feat(spectrogram): use new spec

Previous spectrogram generator couldn't convert to onnx

✨ feat(config): best run

The new result seems to be the best all the time, just update its configuration here.

https://wandb.ai/xiziyi/PhaseNet-TF/runs/ymsgie60?workspace=user-xiziyi

✨ feat(app): Add serving part

FInish the API design, make the inference work, publish the first dockable version