kealib:  moved to github, added v1.4.12 (#15436)
kealib:  moved to github, added v1.4.12 (#15436)


iulian787/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,iulian787/spack,iulian787/spack,LLNL/spack,LLNL/spack,LLNL/spack