Add PiP for iOS

Shared/Player/PlayerLayerView.swift

@@ -0,0 +1,23 @@
+import AVFoundation
+import Foundation
+import UIKit
+
+final class PlayerLayerView: UIView {
+    var playerLayer = AVPlayerLayer()
+
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+
+        layer.addSublayer(playerLayer)
+    }
+
+    @available(*, unavailable)
+    required init?(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        playerLayer.frame = bounds
+    }
+}