WASM build/runs for the Rust implementation

[tracker1]

Per some discussion on #29 it would be very cool to see a WASM build of the Rust implementation with tests in a couple of different runtimes, Wasmer, Node and Deno likely being the most common.

[marghidanu]

There's a merge request for an implementation is AssemblyScript. But The Rust WASM could work as well :)

[mike-barber]

That's a really cool idea; it'll be fun to see how it compares with the AssemblyScript too.

Big question I have is where to put it since it's kind of Rust and kind of WASM.

• Would it go in the Rust folder?
• Would it make sense to have a WASM folder?

We could re-use some of my Rust implementation in solution_1 for this, but I think it'd make sense to have a more focused project that's easier to grok. And I'm far from the right person to setup all the JS/WASM side of things :P

[marghidanu]

Hmm, don't know what to say about having a WASM folder. I would suggest keeping it under Rust.

[tracker1]

Might be best to have a wasm_runtimes directory, with appropriate config, where you can have the runtime configs for wasm run from the appropriate source/build path(s) ... though not sure in either case.