MetaHookSv-refs/tags/v20240131b

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1. [CaptionMod] The VGUI2 hook framework has been ported to a new plugin called "VGUI2Extension". The VGUI2Extension.dll is mandatory to CaptionMod now. The CaptionMod.dll will refuse to load if VGUI2Extension.dll is not loaded.

2. [CaptionMod] The stand-alone advanced graphic / subtitle setting dialogs have been removed. A new property page in the option dialog is added as replacement.

3. [Renderer] A new property page in the option dialog is added if VGUI2Extension.dll is loaded.

4. [SteamScreenshots] Asynchronously screenshot capturing is supported if OpenGL 3.3 is available.

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1. [CaptionMod] VGUI2 hook框架已经从CaptionMod中剥离并移植到新插件 "VGUI2Extension" 中。现在CaptionMod.dll依赖VGUI2Extension.dll才能正常运行。没有加载VGUI2Extension.dll时，CaptionMod.dll会拒绝加载。

2. [CaptionMod] 独立的视频/字幕高级选项对话框被删除，取而代之的是融合在原版设置对话框tab页中的新字幕选项卡。

3. [Renderer] 当VGUI2Extension.dll 存在的情况下会在原版设置对话框tab页中添加一个新的高级图形选项卡，来替代之前被删除的独立图形设置对话框。

4. [SteamScreenshots] 在 OpenGL 3.3 特性可用的情况下，会自动使用异步方式截图，防止截图时游戏卡顿。