fix: Optimize iOS/Android codebases (type-safety and performance)

[mrousavy]

1. Improve Rotation typesafety by explicitly using the enum types, instead of unsafely casting to ints (codestyle)
2. Use @throw instead of [NSException raise] (avoid return)
3. Use [[unlikely]] for exceptions (performance)
4. Use const FrameBuffer& for arguments to avoid copy (performance)