Add C# wrapper for part of FAPO and FAPOBase APIs #364

Job	Run time
FreeBSD	1m 12s
iOS/tvOS SDL3 (iOS, iphoneos, arm64)	45s
Rocky Linux MinGW	53s
Rocky Linux	1m 46s
iOS/tvOS SDL3 (iOS, iphonesimulator, x86_64;arm64)	52s
Rocky Linux MinGW SDL3	1m 5s
iOS/tvOS SDL3 (tvOS, appletvos, arm64)	38s
Debian Linux PPC	1m 40s
iOS/tvOS SDL3 (tvOS, appletvsimulator, x86_64;arm64)	53s
Debian Linux PPC SDL3	55s
Rocky Linux SDL3	1m 10s
macOS (x86_64)	38s
macOS (Universal) SDL3	54s
Windows (MSVC)	1m 11s
Windows (MSVC) SDL3	53s
	15m 25s

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