COMP: NumericTraits is needed in the .h file

Code/Common/otbHistogramStatisticsFunction.h

@@ -19,6 +19,7 @@
 #ifndef __otbHistogramStatisticsFunction_h
 #define __otbHistogramStatisticsFunction_h
 
+#include "itkNumericTraits.h"
 #include "itkHistogramAlgorithmBase.h"
 
 namespace otb

Code/Common/otbHistogramStatisticsFunction.txx

@@ -19,7 +19,6 @@
 #ifndef __otbHistogramStatisticsFunction_txx
 #define __otbHistogramStatisticsFunction_txx
 
-#include "itkNumericTraits.h"
 #include "otbHistogramStatisticsFunction.h"
 
 namespace otb