Support annotations on the interface

[Mkabaka]

Expect

@Path("/hello")
public interface HelloService {

    @Path("/echo")
    String echo(@QueryParam(value = "name") String name);

}

@Service
public class HelloServiceImpl implements HelloService {

    @Override
    public String echo(String name) {
        return name;
    }

}

As we show above, if we visit http://127.0.0.1:8080/hello/service?name=LiMing
then we can get 200 response code successfully.

Actual (Now)

The 404 will be returned.