Make WASM work with keyboard

[paulocoutinhox]

Is your feature request related to a problem? Please describe.

A game in WASM have support for mouse/touch but not to keyboard.

Describe the solution you'd like

Add support for keyboard between javascript and WASM application.

Demo

Application:
https://axext.netlify.app/

Menu:
Layer pan zoom (arrows keys or w/a/s/d)

Repository:
https://github.com/paulocoutinhox/axmol-extensions

Thanks.

[aismann]

@paulocoutinhox
You will add the PR too?

[aismann]

more a discussion?

[paulocoutinhox]

Wasm need receive events, like keyboard.

[aismann]

@halx99
Add ' help wanted' or move it to discussion, right?

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.