add TypeScript declaration file

[millermedeiros]

I guess some people might want it: http://derekknox.com/daklab/2012/10/18/typescript-declaration-for-signal-js/

[millermedeiros]

should probably add it here: https://github.com/borisyankov/DefinitelyTyped

[millermedeiros]

I'm on a Mac and didn't had time to do it / test it yet...

there are 2 TypeScript ports already: https://github.com/photonstorm/typescript-signals and https://github.com/jonopus/typescript-signals

[stasberkov]

If I introduce typings https://www.npmjs.com/package/typings for signals will you accept pull request?

[JohnSword]

how do I use this with typescript?
I added the signals.min.js and the declaration file in VSCode, but when running the script in a browser I keep getting a ReferenceError: signals is not defined.

[JohnSword]

ok now it's working, I had to put this on the top of my ts file:
import signals = require("signals");