## WebGPU Compute shaders frustum culler

New `vtkCuller` implementation that culls actors to the camera view frustum using their bounding boxes.
An actor is either visible or out of the view frustum, there is no notion of "coverage" as in
the `vtkFrustumCoverageCuller`.

The WebGPU frustum culler can be used as any other culler by adding it to the cullers of a renderer.
