Add C# wrapper for part of FAPO and FAPOBase APIs #359

Job	Run time
Rocky Linux	1m 47s
Rocky Linux MinGW	49s
iOS/tvOS SDL3 (iOS, iphoneos, arm64)	40s
FreeBSD	1m 12s
iOS/tvOS SDL3 (iOS, iphonesimulator, x86_64;arm64)	51s
Rocky Linux MinGW SDL3	49s
iOS/tvOS SDL3 (tvOS, appletvos, arm64)	50s
Debian Linux PPC	1m 44s
iOS/tvOS SDL3 (tvOS, appletvsimulator, x86_64;arm64)	49s
Debian Linux PPC SDL3	58s
Rocky Linux SDL3	1m 15s
macOS (x86_64)	21s
macOS (Universal) SDL3	59s
Windows (MSVC)	56s
Windows (MSVC) SDL3	1m 15s
	15m 15s

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