Also backout a previous wrong commit on otbForwardFourierMellinTransformImageFilter.h
(transplanted from fbeea3d47007439683bc92776da091e555f60d90)

(transplanted from b91ac648b9a4c553c48a934731ff4fa751001995)

COMP: including only vcl_complex leads to compilation error if we use vcl_abs(double) later without including it explicitely
(transplanted from 0b91b902d6fe829db8525297fa66ee80e621006f)

(transplanted from 1d9c534bef7fe5d7d3b9b7736216a2838df4f5aa)

ENH : change the copyright to the otb one and add name of the classes that should be override in the exception description

ENH : itk::Transform contains virtual pure methods, add a class otb::Transform to override those method

ENH : remove redundant class, the computation of the histogram with a mask is done in the ScalarImageToGreyLevelRunLengthMatrixGenerator class