Add helper method to compute the maximum bounding boxes for an array of meshes

[bghgary]

[bjsplat]

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[bjsplat]

Snapshot stored with reference name: refs/pull/15045/merge

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[bjsplat]

WebGL2 visualization test reporter:

https://babylonsnapshots.z22.web.core.windows.net/refs/pull/15045/merge/testResults/webgl2playwright/index.html

[bjsplat]

Visualization tests for WebGPU (Experimental) Important - these might fail sporadically. This is an optional test.

https://babylonsnapshots.z22.web.core.windows.net/refs/pull/15045/merge/testResults/webgpuplaywright/index.html

[github-actions[bot]]

This pull request has been marked as stale because it has been inactive for more than 14 days. Please update to "unstale".

[bghgary]

Closing for now as I will be doing something different.