zmat2cart.hs : Converting z-matrix to cartesian

instead of running Fortran library inside haskell executables, we need to try to run haskell library/object inside fortran executable.

strateginya adalah: run haskell library inside fortran ... ganti isi fortran sedikit2 ke haskell library ... begitu sampai di main, baru kita ganti main dengan haskell..

runit using: LD_LIBRARY_PATH=./foreign/lib:$LD_LIBRARY_PATH stack exec test