Remove UnaryFunctorImageFilter

Summary

Replace UnaryFunctorImageFilter by FunctorImageFilter.

Rationale

This is a step of issue #1821 (closed). The class UnaryFunctorImageFilter has been removed and all its instance/derived class have been replaced by FunctorImageFilter.

Copyright

The copyright owner is CNES and has signed the ORFEO ToolBox Contributor License Agreement.

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Check before merging:

• All discussions are resolved
• At least 2 votes from core developers, no vote.
• The feature branch is (reasonably) up-to-date with the base branch
• Dashboard is green
• Copyright owner has signed the ORFEO ToolBox Contributor License Agreement

Examples/Hyperspectral/HyperspectralUnmixingExample.cxx

@@ -119,7 +119,7 @@ int main(int argc, char* argv[])
   typedef otb::UnConstrainedLeastSquareImageFilter<ImageType, ImageType, double> UCLSUnmixingFilterType;
   UCLSUnmixingFilterType::Pointer                                                unmixer = UCLSUnmixingFilterType::New();
   unmixer->SetInput(rescaler->GetOutput());
-  unmixer->SetMatrix(endMember2Matrix->GetMatrix());
+  unmixer->GetModifiableFunctor().SetMatrix(endMember2Matrix->GetMatrix());
 
   unmixer->SetNumberOfThreads(1); // FIXME : currently buggy