SWMM → MeshLib Relation

File in Applications/FileIO/SWMM	Includes file in MeshLib
SWMMInterface.cpp	Utils / getOrCreateMeshProperty.h
SWMMInterface.cpp	Elements / Line.h
SWMMInterface.cpp	Mesh.h
SWMMInterface.cpp	MeshLib/Properties.h
SWMMInterface.cpp	Node.h