steam_guard

Is used to easily get steam guards authentication code. provided you have the shared secret

Usage:

``` extern crate steamguard; let secret = "123123123Ab="; println!("Expires in:{}s", steamguard::expiresinsec()); println!("Login with:{:?}", steamguard::fromsecret(secret)); println!("Next login code:{:?}", steamguard::fromsecret_future(secret, 1));

```