NEW: sct_compute_hausdorff_distance: now available for slice by slice comparison of 3D images
NEW: sct_compute_hausdorff_distance: now available for slice by slice comparison of 3D images

Former-commit-id: ea363e98cc42ba54541819eacf942c5510b1ba18
Former-commit-id: 1813b98aaffbc83145887592c1a10e5011944f79
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox