Can you support es module?

[wushufen]

[angelo-wf]

I haven't worked on this for quite a while now, but if I ever get back to this, I am planning to clean it up a bit, and use ES6 classes instead of the function-based constructors I have now (as I no longer really care about IE11 compatibility anymore). I might then look at using ES6 modules as well.

I'm not sure when (or if) this will happen though. Javascript is really not that goot of a fit for writing emulators, so I don't really have that much motivation for working on this again.