MRG: Merge remote-tracking branch 'remotes/origin/contingency_table' into develop

...tions/AppClassification/app/otbComputeConfusionMatrix.cxx

...ations/AppClassification/app/otbTrainVectorClassifier.cxx

.../AppClassification/include/otbLearningApplicationBase.txx

...plications/AppClassification/include/otbTrainVectorBase.h

Modules/Applications/AppClassification/test/CMakeLists.txt

Modules/Learning/Unsupervised/include/otbContingencyTable.h

...ning/Unsupervised/include/otbContingencyTableCalculator.h

...ng/Unsupervised/include/otbContingencyTableCalculator.txx

...Unsupervised/include/otbSharkKMeansMachineLearningModel.h

...supervised/include/otbSharkKMeansMachineLearningModel.txx

Modules/Learning/Unsupervised/test/CMakeLists.txt

...g/Unsupervised/test/otbContingencyTableCalculatorTest.cxx

.../Learning/Unsupervised/test/otbUnsupervisedTestDriver.cxx