vtkPEnSightReader: fix extent split logic
vtkPEnSightReader was using custom logic to split extents for structured
data among ranks that was buggy and would cause negative extents. This was
causing the reader to fail when opening in parallel on certain number of
ranks. Fixed by using vtkExtentTranslator
instead.
Fixes #20739 (closed).
Edited by Utkarsh Ayachit