Add audio function to Ultra App Kit

[baize]

它们对于音乐或视频播放器等桌面应用程序同样重要，UAK 是一个很好的 gui 库，实际上我认为它可以更强大。

[RaiNote]

While of course this would be great it would probably be limited in functionality and using for example something such as sfml2 for audio could be sufficient especially in case of ultra appkit as from my understanding it aims to be a cross platform UI toolkit.