iOS 14 bindings preview (beta6)

iOS 14

Bindings have been proposed as PR515.
All CocoaTouch APIs were processed based on Xcode12 BETA 6.
This update introduces changes to existing api and this might break existing code. Please open issue/communicate any problem.
Beside existing API update it introduces support for following new frameworks:

• UniformTypeIdentifiers
• Accessibility
• AppClip
• AppTrackingTransparency
• ClockKit
• MediaSetup
• MetalPerformanceShadersGraph
• MLCompute
• NearbyInteraction
• OSLog
• ScreenTime
• SensorKit
• WidgetKit
• DeveloperToolsSupport