[Feature] Support OK-VQA dataset

[InvincibleWyq]

Modification

Support OK-VQA dataset.

Reuse the dataset file of COCOVQA, only need to change the annotation file, so only need to change the config.

You can easily download OK-VQA annotation file at https://okvqa.allenai.org/download.html
Or you can fetch it from /mnt/petrelfs/share_data/wangyiqin/coco/annotations/

A example config for BLIP zero-shot inference is provided. It perform an ACC of 40.6.

Example command:

sh tools/slurm_test.sh <patrition> <jobname> configs/blip/blip-base_8xb32_okvqa.py /mnt/petrelfs/share_data/wangyiqin/blip_ckpt/blip-base_3rdparty-capflit_vqa_20230505-81488941.pth