Feature Request: Support WebAssembly as a target

[Journeycorner]

Motivation

I was thinking of developing a Visual Studio Code extension to count lines of code. There are JavaScript packages on npm available (VSC is build on NodeJS) that do the job, however I guess it would be much faster to compute in WebAssembly.

Feature request

Shipping the count logic in a module without std/file system apis, which are not available on WebAssembly, would enable it to compile tokei to WebAssembly and ship it to npm. Files could be read with NodeJS or a Web Browser while the WASM module does the heavy lifting and returns the result on a per file basis.