Add styled-component support

[tsujp]

This is probably out of scope for this repo, but I cannot use styled-components with this as there are of course no syntax definitions for it. For .tsx files it'd be nice to support styled-components and I suppose, for other people, other CSS types commonly used in React projects.

As far as I know this need not be included in .ts, purely .tsx TypeScriptReact since React complains if you use JSX with TypeScript in anything other than a .tsx extension file, whereas for pure JS and JSX it's only a convention that JSX is in .jsx files.

[willstott101]

This is definitely out of scope in this repo sorry. This repo is just a stripped down version of the TypeScript package and isn't really for additional development.

See here for upstream issue (unfortunately closed): microsoft#342

[willstott101]

Perhaps see: https://www.styled-components.com/docs/tooling#sublime-text

[tsujp]

I figured it might be but wanted to ask anyway. I'm going to port over some Stlyed Components sublime text syntax definitions and use this package as a baseline for that. It'll take a bit as I have other things on my plate but once done I'll link back here so if anyone has a similar query they can find a solution also.