Implement clipping of volume along slices

Moreland, Kenrequested to merge
4d5/ct-scan-visualizer:clip-volume into main

Summary of Changes

Added a new volume rendering mode that (optionally) clips the volume at the locations of the slice planes.

Checklist

  • The MR has a clear and concise title
  • Code is self-documented and follows style guidelines.
  • Automated tests are written and pass successfully.
  • Regression tests (e.g. manually triggered system tests, manual GUI/tool tests, ...) are performed to make sure the MR does not break anything (when applicable)
  • Readme file is present and up-to-date.

Documentation Updates

Additional Notes

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