polyMeshMap: New mesh to mesh map for the new mapping update function mapMesh(const polyMeshMap&)

This new mapping structure is designed to support run-time mesh-to-mesh mapping
to allow arbitrary changes to the mesh structure, for example during extreme
motion requiring significant topology change including region disconnection etc.

applications/utilities/mesh/advanced/refineWallLayer/refineWallLayer.C

@@ -248,7 +248,7 @@ int main(int argc, char *argv[])
     }
 
     // Update stored labels on meshCutter.
-    cutter.updateMesh(map());
+    cutter.topoChange(map());
 
     Info<< "Finished refining" << endl;