* ENH : Add the functions gdcmFile::GetImageDataRaw

 * ENH : Add the functions gdcmFile::GetImageDataRaw
                               gdcmFile::GetImageDataIntoVectorRaw
             that act as GetImageData and GetImageDataIntoVector
	     except the making of an RGB Plane from Gray Plane + LUT
	     Intended to aware (vtk) users who know how to manage
	     such an image :
	     After gdcmHeader :
	        GetLUTRGBA return a R,G,B,A LUT if any
	        lgrTotaleRaw gives the 'Raw' length
	        GetImageDataRaw returns the gray Plane
     * FIX : no more dirty trick for 'Segmented xxx Palette Color Lookup' images
             (They stay Grey, just like with other Dicom viewers :-(
     * FIX : a VC++ intended syntax modif broke the 12/12 Bytes expanding