hdf5_ep

Merge pull request #298 in HDFFV/hdf5 from ~BMRIBLER/hdf5_bmr_cpp:develop to develop

New C++ wrappers for H5P[s/g]et_file_space.

* commit '5f759d6d9f804d99572f605f9d9933c897ef3671':
  Description:     Fixed and added function comments. Platform tested:     Jam (very minor)
  Description:     Fixed small typos Platform tested:     Jam (very minor)
  Purpose: Add new C++ wrappers Description:     Added wrappers for H5Pset_file_space and H5Pget_file_space