TypeScript support

[Sergius]

I've published the npm module https://www.npmjs.com/package/fitbit-sdk-types, with the sourcecode available on GitHub https://github.com/SergioMorchon/fitbit-sdk-types.

Using it is plain straightforward, just add the dev decepncency, include the definitions into your root tsconfig.json and you're ready to go.

Edit: I just realized the existence of:

• TypeScript Starter Project (VS Code, local development)
• [Visual Studio Code] (TypeScript) Intellisense support for your projects

So just to put a difference here over those projects:

• Only definition files, no runtime code.
• This one is published as a npm package, so you can install it without commiting a file.
• This one uses stricter types for events. You can see how it works, for example, in test/device/document.ts.
• It has tests, all of them extracted from the oficial dev site, to assert that all the given examples are working with the type definitions.

[JonFitbit]

Great project, thanks for sharing.