Add the [DPR benchmark](https://github.com/facebookresearch/DPR) of ranking, where the model could be implemented with bert-based encoder. The embedding could be [DPR](https://github.com/facebookresearch/DPR) embedding or [BGE embedding](https://huggingface.co/BAAI/bge-large-en).
Add the DPR benchmark of ranking, where the model could be implemented with bert-based encoder. The embedding could be DPR embedding or BGE embedding.