NEW: wrapper of WarpImageMultiTransform to apply warping fields (previous commit was a mistake)
NEW: wrapper of WarpImageMultiTransform to apply warping fields (previous commit was a mistake)

Former-commit-id: 10ebad33832b90a3bbe448822280a8c234a96a4e
Former-commit-id: 81e4e4558a67336139e99f3a9ea7d25691f5c1f8
3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox,3324fr/spinalcordtoolbox