Adding OCRBench v2 to lmms-eval

[99Franklin]

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If you meet the lint warnings, you can use following scripts to reformat code.

pip install pre-commit
pre-commit install
pre-commit run --all-files

Thank you for your contributions!

[Luodian]

If you meet the lint warnings, you can use following scripts to reformat code.

pip install pre-commit
pre-commit install
pre-commit run --all-files

Thank you for your contributions!

[kcz358]

Hi, I spotted some binary file like *.zip in the commit. May I ask are these files necessary for evaluation? Thank you