ITK: update to ITK 3.18 with OTB patches

Utilities/ITK/CMake/FindNUMARRAY.cmake

Utilities/ITK/CMake/InsightValgrind.supp

Utilities/ITK/CMake/itkTestCStyleIOWCharFilename.cxx

Utilities/ITK/CMake/itkTestCompareTypes.cxx

Utilities/ITK/CMake/itkTestConvertTypes.cxx

Utilities/ITK/CMake/itkTestFDStream.cxx

Utilities/ITK/CMake/itkTestFriendTemplatedFunction.cxx

...s/ITK/CMake/itkTestIOStreamsWCharFilenameConstructors.cxx

Utilities/ITK/CMake/itkTestTemplatePartialSpecialization.cxx

Utilities/ITK/CMake/itkTestTypes.cmake

Utilities/ITK/CMakeLists.txt

Utilities/ITK/CTestConfig.cmake

Utilities/ITK/Code/Algorithms/CMakeLists.txt

Utilities/ITK/Code/Algorithms/itkBalloonForceFilter.h

Utilities/ITK/Code/Algorithms/itkBalloonForceFilter.txx

...es/ITK/Code/Algorithms/itkBayesianClassifierImageFilter.h

.../ITK/Code/Algorithms/itkBayesianClassifierImageFilter.txx

Utilities/ITK/Code/Algorithms/itkBinaryMask3DMeshSource.txx

Utilities/ITK/Code/Algorithms/itkBioCellBase.cxx

Utilities/ITK/Code/Algorithms/itkBioGene.cxx