STYLE: fix various spelling errors using codespell

CMake/Description.txt

CMake/FindGBenchmark.cmake

CMake/FindLibSVM.cmake

CMake/FindQwt.cmake

CMake/OTBSetStandardCompilerFlags.cmake

CMake/UseJava.cmake

Documentation/SoftwareGuide/CMakeLists.txt

Documentation/SoftwareGuide/ParseCxxExamples.pl

Documentation/SoftwareGuide/StripCxxExamples.pl

Examples/BasicFilters/BandMathXImageFilterExample.cxx

Examples/BasicFilters/PrintableImageFilterExample.cxx

Examples/ChangeDetection/KullbackLeiblerProfileChDet.cxx

Examples/Classification/KMeansImageClassificationExample.cxx

Examples/Classification/SOMImageClassificationExample.cxx

Examples/DimensionReduction/ICAExample.cxx

Examples/DisparityMap/NCCRegistrationFilterExample.cxx

...ples/DisparityMap/SimpleDisparityMapEstimationExample.cxx

.../FeatureExtraction/ComplexMomentsImageFunctionExample.cxx

Examples/FeatureExtraction/EdgeDensityExample.cxx

Examples/FeatureExtraction/ExtractRoadExample.cxx