Refactoring with FunctorImageFilter

This issue aims at tracking refactoring with FunctorImageFilter.

• otb::QuaternaryFunctorImageFilter is no longer used by any code and can be removed
• otb::TernaryFunctorImageFilter is used by:
  • Indices module (needs deeper refactoring)
  • Simulation module (refactoring should be straightforward)
• otb::BinaryFunctorImageFilter is not used and can be removed (itk::BinaryFunctorImageFilter is used, but not an issue for us)
• otb::UnaryFunctorImageFilter is used in:
  • Common
  • Unmixing
  • AppFiltering
  • AppClasification
  • AppImageUtils
  • AppSegmentation
  • Projection
• otb::UnaryImageFunctorWithVectorImageFilter
  • OpticalCalibration
  • Simulation
  • Projection
  • ImageManipulation
• otb::UnaryFunctorVectorImageFilter only used by:
  • Statistics
• otb::UnaryFunctorNeighborhoodVectorImageFilter:
  • Used by Edge, ImageManipulation, DimensionalityReduction
  • Need to solve #1802 (closed) first
• otb::UnaryFunctorNeighborhoodImageFilter :
  • OpticalCalibration
  • Labelling
  • ImageManipulation
• otb::BinaryFunctorNeighborhoodImageFilter:
  • ChangeDetection
  • RoadExtraction
  • Need to solve #1802 (closed) first