Integrate the evaluation in the Transformers trainer with transformers.TrainerCallback

[BaohaoLiao]

Hi,

really thank you for this clear code. I wonder whether you plan to integrate this code into the Transformers trainer. in this way, we can run this code during evaluation directly with the Transformers trainer.

[soujanyaporia]

Good suggestion! copying @Emrys-Hong and @chiayewken to take care of this. We might need to do a PR to HF's transformers trainer codes.