Add an example in Basiv_viewer to draw a segment

Author: gdamiand

Basic_viewer/examples/Basic_viewer/CMakeLists.txt

@@ -18,13 +18,15 @@ create_single_source_cgal_program("draw_lcc.cpp")
 create_single_source_cgal_program("draw_surface_mesh_height.cpp")
 create_single_source_cgal_program("draw_surface_mesh_small_faces.cpp")
 create_single_source_cgal_program("draw_surface_mesh_vcolor.cpp")
+create_single_source_cgal_program("draw_segment.cpp")
 
 if(CGAL_Qt6_FOUND)
   #link it with the required CGAL libraries
   target_link_libraries(draw_lcc PRIVATE CGAL::CGAL_Basic_viewer)
   target_link_libraries(draw_surface_mesh_height PRIVATE CGAL::CGAL_Basic_viewer)
   target_link_libraries(draw_surface_mesh_small_faces PRIVATE CGAL::CGAL_Basic_viewer)
   target_link_libraries(draw_surface_mesh_vcolor PRIVATE CGAL::CGAL_Basic_viewer)
+  target_link_libraries(draw_segment PRIVATE CGAL::CGAL_Basic_viewer)
   if(TARGET CGAL::Eigen3_support)
     create_single_source_cgal_program("draw_mesh_and_points.cpp")
     create_single_source_cgal_program("draw_several_windows.cpp")