hdf5_ep

Merge pull request #1547 in HDFFV/hdf5 from ~BMRIBLER/hdf5_bmr_cpp5:develop to develop

C++ wrapper for H5Ovisit2

* commit '6c212353c45ef84b5c977c6019e4d72263534aea':
  Code improvement
  Removed an extra "using" statement
  Adding documentation
  Added C++ wrapper for H5Ovisit2
  Adding a C++ wrapper