hdf5_ep

Merging in latest from upstream (HDFFV/hdf5:refs/heads/develop)

* commit 'e35effff7da40fa8b0dda273be9bbdfa9c8c3624':
  Move pragma statements outside of routines, to make older compilers happy.
  Updated H5Tcopy() to get the dataset's datatype through the VOL when that is passed in as the object ID.