COMP: Do not use system GDCM.
COMP: Do not use system GDCM.

The Debian build has some VTK dependencies that causes CMake imported library
warnings.

thewtex/ITKUltrasound,thewtex/ITKUltrasound,KitwareMedical/ITKUltrasound,KitwareMedical/ITKUltrasound,thewtex/ITKUltrasound,KitwareMedical/ITKUltrasound