Add support for TypeScript definitions

[andrewsantarin]

Tried this module. Works great. But it's a bit doesn't have types built into it, so when I attempt to use it in a TypeScript project, the compiler complains. I've been looking for this in DefinitelyTyped.org but found nothing.

I've prepped a gist here:
https://gist.github.com/andrewsantarin/1aa57d63049798c33b22619c064afa07

[rakeshpai]

Hi @andrewsantarin. This looks awesome. Could you create a PR for this, with the required changes to package.json to reference this .d.ts file? Also, it would be great if you could maintain the typings at least in the short time while we iron out any immediate issues with the types. But otherwise, this seems totally legit to add to the repo. 👍

[andrewsantarin]

Will do, will do. 👌

[andrewsantarin]

@rakeshpai done; see pull request #49