Export functions?

[aronchick]

Hi! Love the project - it's exactly what I needed.

Have you thought of exporting some of the functions so that gron can be used in a library?

[ripienaar]

I'd also love this, see a few dupe requests also.

I'd be willing to do the work to make a package for the lib functions and the cli on main, would you accept such a PR @tomnomnom ?