Allow XR near interaction to interact with all meshes and GUI

[RaananW]

This PR generates the needed data for full interaction with any object using near interaction.
bu and bv were missing, which prevented elements like the GUI from working correctly with near interaction.

PG used for testing: #9K3MRA#1484

[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/14787/merge

Test environment:
https://babylonsnapshots.z22.web.core.windows.net/refs/pull/14787/merge/index.html

To test a playground add it to the URL, for example:

https://babylonsnapshots.z22.web.core.windows.net/refs/pull/14787/merge/index.html#WGZLGJ#4600

Links to test babylon tools with this snapshot:

https://playground.babylonjs.com/?snapshot=refs/pull/14787/merge
https://sandbox.babylonjs.com/?snapshot=refs/pull/14787/merge
https://gui.babylonjs.com/?snapshot=refs/pull/14787/merge
https://nme.babylonjs.com/?snapshot=refs/pull/14787/merge

To test the snapshot in the playground with a playground ID add it after the snapshot query string:

https://playground.babylonjs.com/?snapshot=refs/pull/14787/merge#BCU1XR#0

[bjsplat]

WebGL2 visualization test reporter:

https://babylonsnapshots.z22.web.core.windows.net/refs/pull/14787/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/14787/merge/testResults/webgpuplaywright/index.html