Suggestion - Add types

[modernlabrat]

It would be nice to be able to install the types to go with the package. A lot of people use Typescript, so simply being able to use: npm i --save-dev @types/zips would be great :)

[crhallberg]

An excellent suggestion! Just to be clear, if I include a definition file like index.d.ts, @types (aka. DefinitelyTyped) will be able to pick it up this way?

[crhallberg]

It looks like I would also need to also add types to the package.json.