Add support for hq2x

[torch2424]

Would be cool to Port: https://github.com/brunexgeek/hqx

To wasm :)

[torch2424]

Or use this / rewrite in typescript:

https://www.npmjs.com/package/hqx

[torch2424]

Or we can use @CryZe hqx rust implementation, and port to wasm? 😀

[MaxGraey]

Or use glsl shader for that: https://github.com/Armada651/hqx-shader/blob/master/glsl/hq2x.glsl =)

[torch2424]

@MaxGraey I don't know how to use this, but when I get around to implementation, I'll be sure to ask you! Thanks! 😄