JS Runtime Requirements

[mitsuhiko]

At the moment the quickjs runtime comes up pretty empty. That means even basics such as setTimeout are missing. This is because we are not compiling in quickjs-libc.c which unfortunately does not actually work in a WASM environment at the moment. It's probably also a better idea to actually set up a tokio current thread runtime or similar and have that be hooked up with the engine.

The following APIs should be provided:

• Promise
• setTimeout
• setImmediate
• clearTimeout
• console
• JSON

[mitsuhiko]

There are actually quite a few arguments for not including the ability to schedule something into the mainloop for the use in our pipeline so for now I would book this as "revisit later".