message: Add missing integer template for Python wrapping
  Wrapping of integer types is disabled in ITK to restrict the build size.
  Thus we explicitely wrap the two integer types we need for
  rtk::FFTConvolutionImageFilter.
diff: +#-----------------------------------------------------------------------------
  +# Add missing template <int, 2>
  +#-----------------------------------------------------------------------------
  +itk_wrap_class("itk::Vector")
  + itk_wrap_template("i2" "int, 2")
  +itk_end_wrap_class()
  +
  +itk_wrap_class("itk::FixedArray")
  + itk_wrap_template("i2" "int, 2")
  +itk_end_wrap_class()
  +
  +#-----------------------------------------------------------------------------
  +# rtk::FFTConvolutionImageFilter
  +#-----------------------------------------------------------------------------
  itk_wrap_include( rtkFFTConvolutionImageFilter.h )
  itk_wrap_include( itkImage.h )
  