feat(event): 添加unregisterAll方法

添加unregisterAll方法便于快速注销单个
EasyListener实例中的全部监听器。

BREAKING CHANGE: 包名由 cc.carm.lib.easylisteners 变更为 cc.carm.lib.easylistener 。

src/main/java/cc/carm/lib/easylistener/EasyListener.java

@@ -287,6 +287,7 @@ public class EasyListener implements Listener {
         });
     }
 
+    @SuppressWarnings("deprecation")
     public EasyListener cancelDeath(@Nullable Predicate<Player> predicate,
                                     @Nullable Consumer<PlayerDeathEvent> handler) {
         final Predicate<Player> p = Optional.ofNullable(predicate).orElse((player) -> true);