Fixes and enhancement on Havok & volumes

[CedricGuillemet]

Follow up :

• https://forum.babylonjs.com/t/physicsshape-getboundingbox-returns-empty-object/49133/5
• https://forum.babylonjs.com/t/incorrect-size-of-physics-body/50677/5
• https://forum.babylonjs.com/t/is-there-an-easy-more-efficient-way-to-set-a-havok-physics-body-box-shape-meshs-bounding-box/48512/20

Expose Shape aabb from Havok and use absoluteScaling for aggregate volume computation instead of local scaling.

[bjsplat]

Please make sure to label your PR with "bug", "new feature" or "breaking change" label(s). To prevent this PR from going to the changelog marked it with the "skip changelog" label.

[bjsplat]

Snapshot stored with reference name: refs/pull/15130/merge

Test environment: https://babylonsnapshots.z22.web.core.windows.net/refs/pull/15130/merge/index.html

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[bjsplat]

WebGL2 visualization test reporter:

https://babylonsnapshots.z22.web.core.windows.net/refs/pull/15130/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/15130/merge/testResults/webgpuplaywright/index.html

[CedricGuillemet]

Is there a way to make it Garbage Collection free ?

Or is it not intended to be use in the render loop ?

I think it's mostly for debugging purpose. So it should not be called every frame and should not end up being used in production.