BUG: Fixing up terrasar functor architecture

Code/Radiometry/otbTerraSarBrightnessFunctor.h

Code/Radiometry/otbTerraSarBrightnessFunctor.txx

Code/Radiometry/otbTerraSarBrightnessImageFilter.h

Code/Radiometry/otbTerraSarBrightnessImageFilter.txx

Code/Radiometry/otbTerraSarCalibrationImageFilter.h

Code/Radiometry/otbTerraSarCalibrationImageFilter.txx

Code/Radiometry/otbTerraSarFunctors.h

Code/Radiometry/otbTerraSarFunctors.txx

Testing/Code/Radiometry/CMakeLists.txt

Testing/Code/Radiometry/otbRadiometryTests9.cxx

.../Code/Radiometry/otbTerraSarBrightnessImageFilterTest.cxx

...ing/Code/Radiometry/otbTerraSarBrightnessImageFunctor.cxx

...Code/Radiometry/otbTerraSarCalibrationImageFilterTest.cxx