CoreGraphics iOS 14.0 Beta 1 to Beta 2 API Differences

CGBase.h
Added #def CG_OSX_VERSION
Added #def CG_IOS_VERSION
Added #def CG_TV_VERSION
Added #def CG_WATCH_VERSION
Added #def CG_BRIDGE_VERSION
Added #def CG_OS_VERSION_2020
CGColorSpace.h
Removed kCGColorSpaceITUR_2020_PQ_EOTF
Removed kCGColorSpaceITUR_2020_PQ
Removed kCGColorSpaceDisplayP3_PQ_EOTF
Removed kCGColorSpaceITUR_2020_HLG