Add C# wrapper for part of FAPO and FAPOBase APIs (#364) #365

Job	Run time
Rocky Linux MinGW	1m 2s
Rocky Linux	1m 51s
FreeBSD	1m 10s
iOS/tvOS SDL3 (iOS, iphoneos, arm64)	50s
Rocky Linux MinGW SDL3	1m 3s
iOS/tvOS SDL3 (iOS, iphonesimulator, x86_64;arm64)	1m 6s
Debian Linux PPC	1m 45s
Debian Linux PPC SDL3	58s
iOS/tvOS SDL3 (tvOS, appletvos, arm64)	52s
Rocky Linux SDL3	1m 24s
iOS/tvOS SDL3 (tvOS, appletvsimulator, x86_64;arm64)	54s
macOS (x86_64)	28s
macOS (Universal) SDL3	1m 20s
Windows (MSVC)	1m 3s
Windows (MSVC) SDL3	37s
	16m 23s

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