moab: added v5.2.1, v5.2.0, v5.1.0 (#20010)
moab: added v5.2.1, v5.2.0, v5.1.0 (#20010)

Also added maintainers for the package recipe.
LLNL/spack,LLNL/spack,LLNL/spack,LLNL/spack,iulian787/spack,iulian787/spack,iulian787/spack,LLNL/spack,iulian787/spack,iulian787/spack