Add some geometry and mesh.

src/mesh/CMakeLists.txt

@@ -0,0 +1,13 @@
+list(APPEND mesh_LIB_INCLUDES 
+        AbstractMesh.cpp
+        Edge.cpp
+        Face.cpp
+        QuadMesh.cpp
+        TriMesh.cpp)
+        
+
+# add the library
+add_library(mesh SHARED ${mesh_LIB_INCLUDES})
+
+set_target_properties( mesh PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS ON )                          
+set_property(TARGET mesh PROPERTY FOLDER src)