Add C# wrapper for part of FAPO and FAPOBase APIs #332

Job	Run time
Rocky Linux MinGW	1m 9s
FreeBSD	1m 17s
Rocky Linux	1m 44s
iOS/tvOS SDL3 (iOS, iphoneos, arm64)	47s
Rocky Linux MinGW SDL3	1m 2s
Rocky Linux SDL3	1m 21s
iOS/tvOS SDL3 (iOS, iphonesimulator, x86_64;arm64)	53s
macOS (x86_64)	26s
iOS/tvOS SDL3 (tvOS, appletvos, arm64)	41s
iOS/tvOS SDL3 (tvOS, appletvsimulator, x86_64;arm64)	1m 3s
macOS (Universal) SDL3	1m 0s
Windows (MSVC)	1m 0s
	12m 23s

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