S4PropWrapper API

<span style="font-size:24px;">public class S4PropWrapper本类包裹annotations，本类包含一个Proxy即代理，应该是对sphinx-annotation的给类进行反射的代理，以获得在annotation中各种默认设置。public class S4PropWrapper {    private final Proxy annotation;    public S4PropWrapper(Proxy annotation) {        this.annotation = annotation;    }    public Proxy getAnnotation() {        return annotation;    }}</span>