Change name of cell association for fields
In the enum vtkm::cont::Field::Association, the identifier for cell fields is named CELL_SET. This is a weird name. It should be changed to CELLS to match the name for points (i.e. POINTS).
In the enum vtkm::cont::Field::Association, the identifier for cell fields is named CELL_SET. This is a weird name. It should be changed to CELLS to match the name for points (i.e. POINTS).