feat: add tool to support pull contributor metadata

[Yiyiyimu]

Signed-off-by: yiyiyimu [email protected]

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[membphis]

ping @nic-chen please confirm this PR can work fine.

I think we need to add some documentation about this new feature.

[nic-chen]

@Yiyiyimu please add some docs about how it works, and how to use it, as we talked before, thanks.

[Yiyiyimu]

Got it I'll add some docs later

[juzhiyuan]

@Yiyiyimu Hi Shuyang, do we still need this PR?