* vtk/vtkGdcmReader.[h|cxx] : bug fix. Plane order isn't inverted

   * vtk/vtkGdcmReader.[h|cxx] : bug fix. Plane order isn't inverted
   * vtk/vtkGdcmWriter.[h|cxx] : correctly write images (the Y axis is inverted)
   * Test/ShowDicomSeq.cxx : new test to verify the use of AddFileName method
   * Test/ShowDicom.cxx, TestWriteWithVTK.cxx : set the threshold of regression
     test to 0.0
   * Test/TestCopyRescaleDicom.cxx : remove unused variable
   * Test/CMakeLists.txt : add the creation of the gdcmDataSeqImages.h file
     containing found sequences
   -- BeNours