Turn fulmar into a racket package.

If you are interested in an automated installation, merging this turns fulmar into a racket package that can be automatically installed. (I sent this at Michael’s request).

From there, all you have to do is:

    git clone https://github.com/cwearl/fulmar.git
    cd fulmar/fulmar
    raco link .
    raco setup fulmar

Furthermore, once this commit has been added, it can be added to `pkgs.racket-lang.org`, where it can be installed with just one command:

    raco pkg install fulmar