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/manipulation/mirrorMesh/mirrorMesh.C

@@ -124,7 +124,7 @@ int main(int argc, char *argv[])
         labelList(0),           // oldPatchNMeshPoints,
         autoPtr<scalarField>()  // oldCellVolumesPtr
     );
-    refData.updateMesh(map);
+    refData.topoChange(map);
     refData.write();
 
     Info<< "End" << endl;