Support for our animation option

[proxonautShank]

Hey, can we add other animation options current it just fades in?

• Appear from the bottom (like the present)
  let screenHeight = UIScreen.main.bounds.height
  PIPKit.rootViewController?.view.transform = CGAffineTransform(translationX: 0, y: screenHeight)

    UIView.animate(withDuration: 0.25, animations: {
        PIPKit.rootViewController?.view.transform = originalTransform ?? .identity
    }) { (_) in
        completion?()
    }
  

• navigation