win-capture-audio v2.1.0-beta-s-2

For OBS versions 27.1.3 and newer, on (an updated) Windows 10 2004 (released 2020-05-27) or later.

• Adds translations for French, Chinese, German, Russian, Spanish and Chinese Traditional (Taiwan).
• Rewrite of the core capture code to C++ (with WIL/WRL) to use a MMCSS registered MF queue to improve stability under load.
• Fixes error handling for when the ActivateAudioInterfaceAsync call fails on outdated Windows.
• Removes capture helper to simplify code and match the support that will eventually land in OBS - this means that with two Application Audio Capture Sources pointed at the same window only one will capture audio. Use Add Existing to have the same source in two scenes.
• Added new Mode to always capture the current Foreground-Window
• Capture Audio from UWP-Apps