refactor(starwars): inject counterfeit into decorator constructor

Previously the setup for the `DeathStar` integration test involved
injecting `counterfeit` in a separate `inject` block. This dependency is
now injected into the `decorator` function directly. The README file has
been updated so that the example is consistent with this approach.
chore(version): bump version to 0.0.4

This version includes documentation changes and test refactoring.