disp3D → connectivity Relation

File in src/libraries/disp3D	Includes file in src/libraries/connectivity
engine / model / items / measurement / measurementtreeitem.h	network / network.h
engine / model / data3Dtreemodel.h	network / network.h
engine / model / items / mri / mritreeitem.h	network / network.h
engine / model / items / network / networktreeitem.cpp	network / networknode.h
engine / model / items / network / networktreeitem.cpp	network / networkedge.h
engine / model / items / network / networktreeitem.h	network / network.h
viewers / networkview.cpp	network / network.h