WIP mrgrid: new command, incroporates functionality of mrresize, mrcrop, mrpad and mrtransform (identity). Added template and datatype options for all modes. #364
WIP mrgrid: new command, incroporates functionality of mrresize, mrcrop, mrpad and mrtransform (identity). Added template and datatype options for all modes. #364

MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3,MRtrix3/mrtrix3