DEV: added QC to sct_segment_spinalcord
DEV: added QC to sct_segment_spinalcord

Former-commit-id: ea6d5bfc9d26de2071351434e1a39a9699078288
neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox,neuropoly/spinalcordtoolbox