Add simpler API for vtkImageShiftScale
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
The interfaces for setting shift and scale ivars can be confusing to the user (See this thread http://public.kitware.com/pipermail/vtkusers/2005-December/083116.html).
I would suggest adding an API like the following:
SetOutputRange(lowValue, highValue).