[ECO-4920] Define the public API of the SDK #138

Job	Run time
generate-matrices	25s
lint	43s
SPM (Xcode 15.3, Swift 5)	42s
Example app, macOS (Xcode 15.3, Swift 5)	1m 19s
SPM (Xcode 16-beta, Swift 6)	58s
Example app, iOS (Xcode 15.3, Swift 5)	2m 2s
Xcode, macOS (Xcode 15.3, Swift 5)	2m 31s
Example app, tvOS (Xcode 15.3, Swift 5)	2m 32s
Xcode, iOS (Xcode 15.3, Swift 5)	2m 21s
Example app, macOS (Xcode 16-beta, Swift 6)	2m 11s
Xcode, tvOS (Xcode 15.3, Swift 5)	2m 20s
Xcode, macOS (Xcode 16-beta, Swift 6)	2m 1s
Example app, iOS (Xcode 16-beta, Swift 6)	1m 56s
Example app, tvOS (Xcode 16-beta, Swift 6)	1m 53s
Xcode, iOS (Xcode 16-beta, Swift 6)	4m 10s
Xcode, tvOS (Xcode 16-beta, Swift 6)	2m 18s
all-checks-completed	1s
	30m 23s

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