Compile hbjs.js from harfbuzz.ts

[LeoDog896]

As of now, harfbuzzjs itself is untyped and requires explicitly using the harfbuzz.ts file - to avoid unnecessary duplication, the .js and .d.ts files could be generated instead.

[lianghai]

@khaledhosny, what’s actually the currently relationship between this harfbuzz.ts and the rest of this project?

[khaledhosny]

I don’t know. I don’t even know what .ts is (I’m not much of a web developer myself and I’m maintaining this project only because no one else does).

[lianghai]

Haha alright… I see. Yeah TypeScript (.ts) is JS with static type checking, usually compiled to JS for distribution. It’s difficult for me to read C++, but I’m quite comfortable with writing TS. Will see if I get to contribute and unify the JS and TS aspects of this repo.