Allow @NeedsServer for types as well

[SwEngin]

I think it will be helpful to have @NeedsServer to support type annotation as well as if I use restito for a specific test the whole class is an integration test plus it'll allow me to run the server before and after class instead of before and after every test

@Before
    public void setUp() throws Exception {
        if (serverDependency.isServerDependent()) {
            server = new StubServer(9968).run();
        }
    }