vtkMetaImageData: adding a #define to be able to quickly change the image-orientation-correction flag. of course it is to ON by default, so no change to the downstream-upstream pipeline
vtkMetaImageData: adding a #define to be able to quickly change the image-orientation-correction flag. of course it is to ON by default, so no change to the downstream-upstream pipeline

NicolasSchnitzler/medInria-public,rdebroiz/medInria-public,NicolasSchnitzler/medInria-public,rdebroiz/medInria-public,aabadie/medInria-public,aabadie/medInria-public,rdebroiz/medInria-public,aabadie/medInria-public,NicolasSchnitzler/medInria-public