chore: Move everything into package/ (#1745)

* Move everything into package

* Remove .DS_Store

* Move scripts and eslintrc to package

* Create CODE_OF_CONDUCT.md

* fix some links

* Update all links (I think)

* Update generated docs

* Update notice-yarn-changes.yml

* Update validate-android.yml

* Update validate-cpp.yml

* Delete notice-yarn-changes.yml

* Update validate-cpp.yml

* Update validate-cpp.yml

* Update validate-js.yml

* Update validate-cpp.yml

* Update validate-cpp.yml

* wrong c++ style

* Revert "wrong c++ style"

This reverts commit 55a3575589c6f13f8b05134d83384f55e0601ab2.

package/ios/Extensions/AVCaptureDevice+neutralZoom.swift

@@ -0,0 +1,28 @@
+//
+//  AVCaptureDevice+neutralZoom.swift
+//  mrousavy
+//
+//  Created by Marc Rousavy on 10.01.21.
+//  Copyright © 2021 mrousavy. All rights reserved.
+//
+
+import AVFoundation
+
+extension AVCaptureDevice {
+  /**
+   Get the value at which the Zoom factor is neutral.
+
+   For normal wide-angle devices, this is always going to be 1.0, since this is the default scale.
+   For devices with an ultra-wide-angle camera, this value is going to be the value where the wide-angle device will switch over.
+   */
+  var neutralZoomFactor: CGFloat {
+    if #available(iOS 13.0, *) {
+      if let indexOfWideAngle = self.constituentDevices.firstIndex(where: { $0.deviceType == .builtInWideAngleCamera }) {
+        if let zoomFactor = self.virtualDeviceSwitchOverVideoZoomFactors[safe: indexOfWideAngle - 1] {
+          return CGFloat(zoomFactor.doubleValue)
+        }
+      }
+    }
+    return 1.0
+  }
+}