Add iOS

ios/Parsers/AVCapturePhotoOutput.QualityPrioritization+descriptor.swift

@@ -0,0 +1,29 @@
+//
+//  AVCapturePhotoOutput.QualityPrioritization+descriptor.swift
+//  Cuvent
+//
+//  Created by Marc Rousavy on 15.12.20.
+//  Copyright © 2020 Facebook. All rights reserved.
+//
+
+import AVFoundation
+import Foundation
+
+@available(iOS 13.0, *)
+extension AVCapturePhotoOutput.QualityPrioritization {
+  init?(withString string: String) {
+    switch string {
+    case "speed":
+      self = .speed
+      return
+    case "quality":
+      self = .quality
+      return
+    case "balanced":
+      self = .balanced
+      return
+    default:
+      return nil
+    }
+  }
+}