hdf5

Merge pull request #1832 in HDFFV/hdf5 from ~SONGYULU/hdf5_ray:feature/HDFFV-10658_properties_in_api_context_3 to hdf5_1_10

* commit '9ca9deef1e5bf7a17481247a1646d3898cf8ae41':
  Changed the external files to a directory (extern_env_dir) to avoid possible conflict in daily test on jelly.