hdf5

Merge pull request #310 in HDFFV/hdf5 from ~BMRIBLER/hdf5_bmr_cpp:develop to develop

Added H5File::getFileInfo; IdComponent::getNumMembers and typeExists

* commit '4fc97f28531bd89640c10389dd36270335e5a971':
  Purpose: Add new C++ wrappers Description:     Added wrappers for H5Fget_info2, H5Inmembers, and H5Itype_exists