feat: Add parameter to append danmuku library in artplayer-plugin-danmuku

CHANGELOG_CN.md

@@ -8,6 +8,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 -   优化 `setBar` 事件
 -   新增 `artplayerPluginChapter` 插件
+-   新增 `art.plugins.artplayerPluginDanmuku.load(target)` 参数，用于追加弹幕库
 
 ## [5.1.4] - 2024-6-1