Moved Python HDF5 samples into HDF5 directory; removed unnecessary HDF5 files; use context manager for HDF5 file; added README
Fixed wording of README for HDF5 C samples
Updated top-level README for Python HDF5.
Added HDF5 fortran example illustrating file creation and data write
Merge pull request #20 from gjbex/feature/hdf5

Feature/hdf5