BUG: correct the origin of the image after a padding according to the qform matrix (that contains the origin before the padding, the angles of the images and the spacing)
BUG: correct the origin of the image after a padding according to the qform matrix (that contains the origin before the padding, the angles of the images and the spacing)

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