An extension on `UIImage.Orientation` to convert it to the corresponding `CGImagePropertyOrientation` case.

UIImage.Orientation+Correction.swift

extension UIImage.Orientation {
    /// Get the equivalent `CGImagePropertyOrientation` enum case.
    var cgOrientation: CGImagePropertyOrientation {
        switch self {
        case .up:               return .up
        case .down:             return .down
        case .left:             return .left
        case .right:            return .right
        case .upMirrored:       return .upMirrored
        case .downMirrored:     return .downMirrored
        case .leftMirrored:     return .leftMirrored
        case .rightMirrored:    return .rightMirrored
        }
    }
}