Functional tests for Histogram 1D and 2D.

Core/PythonAPI/inc/vdouble2d_t.pypp.h

Core/PythonAPI/src/ConstKBinAxis.pypp.cpp

Core/PythonAPI/src/CustomBinAxis.pypp.cpp

Core/PythonAPI/src/FixedBinAxis.pypp.cpp

Core/PythonAPI/src/Histogram1D.pypp.cpp

Core/PythonAPI/src/Histogram2D.pypp.cpp

Core/PythonAPI/src/IAxis.pypp.cpp

Core/PythonAPI/src/IHistogram.pypp.cpp

Core/PythonAPI/src/PythonModule.cpp

Core/PythonAPI/src/VariableBinAxis.pypp.cpp

Core/PythonAPI/src/vdouble2d_t.pypp.cpp

Core/Tools/inc/FixedBinAxis.h

Core/Tools/inc/Histogram1D.h

Core/Tools/inc/Histogram2D.h

Core/Tools/inc/IAxis.h

Core/Tools/inc/IHistogram.h

Core/Tools/inc/VariableBinAxis.h

Core/Tools/src/FixedBinAxis.cpp

Core/Tools/src/Histogram1D.cpp

Core/Tools/src/Histogram2D.cpp