Add linking with native libraries to Haskell fpm

The `link` option is available in Fortran *fpm* and would be a valuable addition for Haskell version as well. Once the Fortran version depends on libraries like `libgit2` or `libcurl` this would be a requirement in Haskell *fpm* to bootstrap the Fortran version.

This requires to introduce the build table and to propagate the link arguments correctly to the link line in the shake build system.