Fix refined meshes with ghosts

[garth-wells]

At the moment, the handling of refinement of ghosted meshes is a mess. It should be easy to optionally include ghost cells in a refined mesh without re-partitioning by using compute_destination_ranks(...) in graph/partitioners.cpp.

This is compounded by transfer_facet_meshtag(...) and transfer_cells_meshtag(...) no supporting ghosted meshes, or re-partitioned refined meshes. Both should be relatively easy to support. This leads to unexpected 'user experiences'.

It could help a lot if mesh::create_mesh returned the destination ranks of the input cells.