opencv : Add section comments
opencv : Add section comments

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