add filePath to define recording directory

- add CaptureError.createRecordingDirectoryError
- stub RCTViewManager to be able to compile CameraViewManager

package/ios/TestRecorder/ViewController.swift

@@ -14,10 +14,15 @@ class ViewController: UIViewController {
   @IBOutlet weak var recordButton: UIButton!
   
   let cameraView = CameraView()
+  let filePath: String = {
+    NSTemporaryDirectory() + "TestRecorder"
+  }()
   
   override func viewDidLoad() {
     super.viewDidLoad()
     
+    try? FileManager.default.removeItem(atPath: filePath)
+    
     cameraView.translatesAutoresizingMaskIntoConstraints = false;
     view.insertSubview(cameraView, at: 0)
     NSLayoutConstraint.activate([
@@ -98,7 +103,8 @@ class ViewController: UIViewController {
         options: [
           "fileType": "mp4",
           "videoCodec": "h265",
-        ]) { callback in
+        ],
+        filePath: filePath) { callback in
           print("callback", callback)
         }