usage in browser

[gausie]

I could use this in the browser if I could connect it to stockfish.js rather than a local engine

[ebemunk]

currently, as the name also suggests, this package is only intended for node.js

i did have plans to make it work for browsers as well, but it involves pulling out some of the internals related to process spawning.

unfortunately i am focusing on other improvements for this library currently, so browser use is nice-to-have, but not a priority

i would welcome any PRs to address that if you're up for it