Adding MeshSerializer object to ExodusII_IO::write_element_data().
Adding MeshSerializer object to ExodusII_IO::write_element_data().

This function only works with SerialMeshes, similarly to the way
that ExodusII_IO::write() and ExodusII_IO::write_timestep() currently
work.

Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh