hdf5_ep

Merge pull request #2443 in HDFFV/hdf5 from ~BYRN/hdf5_adb:hdf5_1_10 to hdf5_1_10

* commit '8249b1a97a3a30e553c20b44aea985a7aa149faf':
  Fix comment
  Remove deleted files
  Changes to region reference in h5dump no longer have errstack
  Check sizeof type to use correct ref_type