VTK: update for PIO license changes

• Cory Quammen: update-pio-licenses (vtk/vtk!10626 (merged))

Some minor cleanups as well:

• Clean to Grid filter property name fix (weighing to weighting)
• "Rearrange Views" changed to "Equalize Views" to better reflect what happens when you use it.

Neither of these changes introduce backwards incompatibilities as they have not yet been in a release.