When running under the SwiftUI app lifecycle, the Godot view controller can be wrapped by a hosting controller that becomes the window's root view controller. In that case, orientation-related UIKit selectors must be propagated to the root controller before requesting an interface orientation update.
This also fixes orientation settings not being applied correctly on iOS.
- Introduces a SCons builder for Swift files
- Increases the minimum deployment targets to iOS 14.0, and visionOS 26.0.
- Replaces manually UIWindow management by a SwiftUI instantiated app.