Added an option for culling objects out of the ray tracing acceleration structure.

[anisunity]

This PR adds the option for users to specify a culling mode for the ray tracing acceleration structure. This can be specified in the Ray Tracing Settings Volume. The user can chose between three options:

• Extended frustum: This mirror the frustum and takes the bounding box of the result (default option)
• Sphere: An additional option becomes available in the volume and allows the user to specify a radius.
• None: Previous state

Testing Status
Three new tests were created to cover this new feature.

[github-actions]

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[remi-chapelain]

Has already been pair tested while making the precious automated tests.
Looking good. ✔️

[sebastienlagarde]

Pleas add an entry in What's new for this thanks

[anisunity]

What is new updated, all DXR tests are green locally all good!