NEW: msct_image : add an np_array attribute to load an image from an array of data
NEW: msct_image : add an np_array attribute to load an image from an array of data

3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox