The new and improved vtkm::cont::ColorTable provides a more feature complete
color table implementation that is modeled after
vtkDiscretizableColorTransferFunction. This class therefore supports different
color spaces ( rgb, lab, hsv, diverging ) and supports execution across all
device adapters.
The ScalarsToColors is the first step in reproducing the color
capability that exists in VTK. The next step after this is to
provide a comparable lookup table.
