NEW: hausdorff distance is compute in LOOCV by subject, and denoting optional in the pretreatments
NEW: hausdorff distance is compute in LOOCV by subject, and denoting optional in the pretreatments

Former-commit-id: 907c0560e35fc497c5db2e9942e3836e3fe50bc6
Former-commit-id: e8606a5767c0ccabe64ecadff537e7997c719f24
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox