New Package Wonton (#17882)
New Package Wonton (#17882)

* new package Wonton

* remove the flecsi variant because flecsi-sp does not have a spackage

* fix url, clean up whitespaces

* formatting

* put in explicit else clauses for variants in CMake section because CMake's behavior is system-dependent

Co-authored-by: Rao Garimella <972925f4de5cc90c9d778505f3789047067e9067@abyzou.lanl.gov>
iulian787/spack,LLNL/spack,LLNL/spack,LLNL/spack,iulian787/spack,LLNL/spack,iulian787/spack,iulian787/spack,iulian787/spack,LLNL/spack