Update hdf5 and mpi plugin
MR after !151 (merged)
Passing context to decl_hdf5 instead of logger, ctx will be needed later. Removed to_mpi() from Expression. Split mpi plugin into 2 files.
MR after !151 (merged)
Passing context to decl_hdf5 instead of logger, ctx will be needed later. Removed to_mpi() from Expression. Split mpi plugin into 2 files.