schluppeck/strkvis-mri: MRI and associated behavioural data for stroke survivors (Beh at al, 2021)

Denis Schluppeck 57de8008a4 adds func data for sub-14326		3 lat temu
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anat	862dafd1fa adds validated anat/dwi data for subjects	3 lat temu
dwi	862dafd1fa adds validated anat/dwi data for subjects	3 lat temu
func	57de8008a4 adds func data for sub-14326	3 lat temu