Allow project to build when using recent releases of HDF5 #47
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I did some investigation into #37 and found that the reason we are getting CMake errors when trying to build against recent versions of HDF5 is because they make MPI_C a public dependency. Even though we import MPI, CMake only imports the MPI libraries corresponding to the language(s) of the the project we are working on which, in our case, is C++. I have raised a bug report with HDF5 (HDFGroup/hdf5#3844). In the meantime, this PR will fix the issue for us.