support of user's parameters in optical calibration application
add filters for luminance to image, reflectance to luminance, reflectance to image
add related tests

Support of SPOT6 metadata in otbossimplugin + creation of SPOT6 metadata interface in otb + creation of related tests in Testing/Code/IO

ENH: OTB-297 : read the GML box for jpeg2000 files, handle the spacing the same way as JPEG2000ImageIO

ENH: new CMake variable (OTB_USE_JPEG2000_TESTING) to activate jpeg2000 tests even when the JPEG2000ImageIO is disabled

No more use of ITK filters itkScalarImageToCooccurrenceMatrixFilter and itkHistogramToTexturesFilter.
Integration of patch for pixelVarianceSquared from ITKPendingPatches/itkHistogramToTexturesFilter.hxx
Neigbhorhood window size updated for given Radius value and not creating MaskImage
Change InputImageMaximum to 255 in Testing Code and also updated
the default value of m_InputImageMaximum in ScalarImageToTexturesFilter
Changed tolerance value to 0.00001 from no tolerance

the makeOutput is overloaded but not with the same prototype

the prototype of the function is not compatible with the original function into itk:ProcessObject