Use Quaternion and slerp for alpha/beta/gamma arcrotate interpolation

[CedricGuillemet]

Using modulo and Euler angles is always a bad idea. Using quaternion and slerp instead.

test PG : #TT1T4C#2

[bjsplat]

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To prevent this PR from going to the changelog marked it with the "skip changelog" label.

[bjsplat]

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[bjsplat]

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[bjsplat]

Visualization tests for WebGPU (Experimental)

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[RaananW]

Is this a breaking change to the camera behavior?

[CedricGuillemet]

Is this a breaking change to the camera behavior?

Nop, it's a math improvement for this feature: https://github.com/BabylonJS/Babylon.js/pull/15248/files