TEST: fix tests for SVM classes

Modules/Detection/ObjectDetection/test/CMakeLists.txt

...ion/ObjectDetection/test/otbObjectDetectionClassifier.cxx

...ion/ObjectDetection/test/otbObjectDetectionTestDriver.cxx

Modules/Learning/Supervised/test/CMakeLists.txt

Modules/Learning/Supervised/test/otbLabelMapClassifier.cxx

.../Supervised/test/otbSVMCrossValidationCostFunctionNew.cxx

Modules/Learning/Supervised/test/otbSVMMarginSampler.cxx

Modules/Learning/Supervised/test/otbSupervisedTestDriver.cxx

Modules/Learning/Supervised/test/tests-libsvm.cmake