vchoi_fork

Merge pull request #2747 in HDFFV/hdf5 from ~BYRN/hdf5_adb:doxygen to doxygen

* commit 'c3e67d64f4736a51e8ab9ab3f0c1a7dfa04c34e7':
  Correct output for C style
  revert incorrect change
  Updates to align with original files
  Add CMake support for doxygen of library source