[3DS模拟器]8月31号测试版

[iZzq920817]

开发日志：

• Merge pull request #2899 from wwylele/touch-refactor
  Refactor touch input into a TouchDevice
• EmuWindow: refactor touch input into a TouchDevice
• HID: use TouchDevice for touch pad
• Merge pull request #2905 from danzel/fix-2902
  Use recursive_mutex instead of mutex to fix #2902
• Use recursive_mutex instead of mutex to fix #2902

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