Add types

[rickdgeerling]

Addresses #28

[iliasmentz]

Hey, any chance for this to get merged?

[rickdgeerling]

In the mean time, you can add the index.d.ts file in your own repo under types/mock-http-server

[pietro909]

I suggest pushing them to Definitely Typed in the meanwhile. It is also suggested in Effective Typescript to keep them separated so that we don't need to wait for the maintainers of a non-TS repo to act on type-related issues.

[rickdgeerling]

@pietro909 Please be my guest if you've got the time. I'm short on time and I'm no longer using this library so there's little incentive for me to continue working on this.

[pietro909]

Sorry @tuxmachine saw now: I've found it faster to migrate to https://github.com/httptoolkit/mockttp which exposes a very similar interface and is written in TS.