STY: s/RadiometricIndice/RadiometricIndex/g

...les/Applications/AppIndices/app/otbRadiometricIndices.cxx

...les/Radiometry/Indices/include/otbBuiltUpIndicesFunctor.h

Modules/Radiometry/Indices/include/otbLandsatTMIndices.h

Modules/Radiometry/Indices/include/otbRadiometricIndex.h

Modules/Radiometry/Indices/include/otbSoilIndicesFunctor.h

.../Radiometry/Indices/include/otbVegetationIndicesFunctor.h

Modules/Radiometry/Indices/include/otbWaterIndicesFunctor.h

Modules/Radiometry/Indices/test/CMakeLists.txt

Modules/Radiometry/Indices/test/otbIndicesTestDriver.cxx

...les/Radiometry/Indices/test/otbRadiometricIndicesTest.cxx