Add CI/CD for iOS, tvOS, and their simulators (#361) #22

Job	Run time
Rocky Linux	1m 50s
FreeBSD	1m 10s
iOS/tvOS SDL3 (iOS, iphoneos, arm64)	1m 10s
Rocky Linux MinGW	1m 4s
iOS/tvOS SDL3 (iOS, iphonesimulator, x86_64;arm64)	55s
Rocky Linux MinGW SDL3	51s
Rocky Linux SDL3	1m 28s
iOS/tvOS SDL3 (tvOS, appletvos, arm64)	51s
iOS/tvOS SDL3 (tvOS, appletvsimulator, x86_64;arm64)	1m 1s
macOS (x86_64)	24s
macOS (Universal) SDL3	58s
Windows (MSVC)	1m 20s
	13m 2s

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