feat: Video Stabilization (#160)

* Set video stabilization mode

* Fix video stabilization below iOS 13

* swift format

ios/Extensions/AVCaptureSession+setVideoStabilizationMode.swift

@@ -0,0 +1,28 @@
+//
+//  AVCaptureSession+setVideoStabilizationMode.swift
+//  VisionCamera
+//
+//  Created by Marc Rousavy on 02.06.21.
+//  Copyright © 2021 Facebook. All rights reserved.
+//
+
+import AVFoundation
+import Foundation
+
+extension AVCaptureSession {
+  /**
+   Set the given video stabilization mode for all capture connections.
+   */
+  func setVideoStabilizationMode(_ mode: String) {
+    if #available(iOS 13.0, *) {
+      guard let mode = try? AVCaptureVideoStabilizationMode(withString: mode) else {
+        return
+      }
+      connections.forEach { connection in
+        if connection.isVideoStabilizationSupported {
+          connection.preferredVideoStabilizationMode = mode
+        }
+      }
+    }
+  }
+}