New package: r-hh (#17667)
New package: r-hh (#17667)

* New package: r-hh

* Add short description

Add the project one liner for a short description that will be used for
`module whatis`.
iulian787/spack,iulian787/spack,LLNL/spack,iulian787/spack,LLNL/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,LLNL/spack