Only use vtkArrayIterators for non-vtkDataArrays in vtkDSA.
Only use vtkArrayIterators for non-vtkDataArrays in vtkDSA.

Otherwise use the array dispatchers. Adapted worker to use
vtkDataArrayAccessors for fallbacks on non-dispatchable arrays, and
enable optimizations based on array stride.

sumedhasingla/VTK,SimVascular/VTK,SimVascular/VTK,keithroe/vtkoptix,keithroe/vtkoptix,SimVascular/VTK,keithroe/vtkoptix,keithroe/vtkoptix,keithroe/vtkoptix,keithroe/vtkoptix,sumedhasingla/VTK,SimVascular/VTK,sumedhasingla/VTK,sumedhasingla/VTK,SimVascular/VTK,SimVascular/VTK,keithroe/vtkoptix,SimVascular/VTK,sumedhasingla/VTK,sumedhasingla/VTK,keithroe/vtkoptix,sumedhasingla/VTK,sumedhasingla/VTK,SimVascular/VTK