fix: Exclude Viewer from Docker image build
fix: Exclude Viewer from Docker image build

Need to update base image to include FLTK installation.

schuhschuh/MIRTK,BioMedIA/MIRTK,BioMedIA/MIRTK,schuhschuh/MIRTK,BioMedIA/MIRTK,BioMedIA/MIRTK,schuhschuh/MIRTK,schuhschuh/MIRTK