Added netcdf package support.
Added netcdf package support.

mfherbst/spack,skosukhin/spack,TheTimmy/spack,krafczyk/spack,EmreAtes/spack,matthiasdiener/spack,lgarren/spack,mfherbst/spack,TheTimmy/spack,lgarren/spack,krafczyk/spack,tmerrick1/spack,iulian787/spack,LLNL/spack,LLNL/spack,lgarren/spack,krafczyk/spack,iulian787/spack,iulian787/spack,krafczyk/spack,tmerrick1/spack,tmerrick1/spack,matthiasdiener/spack,TheTimmy/spack,LLNL/spack,tmerrick1/spack,skosukhin/spack,EmreAtes/spack,matthiasdiener/spack,LLNL/spack,lgarren/spack,krafczyk/spack,EmreAtes/spack,mfherbst/spack,EmreAtes/spack,mfherbst/spack,tmerrick1/spack,skosukhin/spack,skosukhin/spack,matthiasdiener/spack,matthiasdiener/spack,skosukhin/spack,EmreAtes/spack,TheTimmy/spack,lgarren/spack,iulian787/spack,TheTimmy/spack,LLNL/spack,iulian787/spack,mfherbst/spack