Pose/Transform query of TriangleMesh

[Chaoqi-LIU]

Checklist

• I have searched for similar issues.
• For Python issues, I have tested with the latest development wheel.
• I have checked the release documentation and the latest documentation (for main branch).

Proposed new feature or change

I think it's important and much more convenient for ppl to use, if TriangleMesh can offer a new function .pose() which will return the 4x4 homogeneous matrix represent its current pose. If this feature already exists somewhere that I didn't notice, please let me know. Otherwise, I think this is a very common function call appeared in other similar toolkit.

References

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Additional information

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