scorer & calc_score

[zhangxjohn]

Please make sure that this is a feature request.

System information

• Hypernets version (you are using):
• Are you willing to contribute it (Yes/No):

Describe the feature and the current behavior/state.
I found that the user-defined evaluation metric function could not be set in the hypernets experiment, and calc_score() contained few metrics, such as no mape.

Will this change the current api? How?

Any Other info.

[zhangxjohn]

Is it possible to make the following modifications?

https://github.com/DataCanvasIO/HyperTS/blob/main/hyperts/utils/metrics.py