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/CameraView+Zoom.swift

@@ -0,0 +1,73 @@
+//
+//  CameraView+Zoom.swift
+//  mrousavy
+//
+//  Created by Marc Rousavy on 18.12.20.
+//  Copyright © 2020 mrousavy. All rights reserved.
+//
+
+import Foundation
+
+extension CameraView {
+  var minAvailableZoom: CGFloat {
+    return videoDeviceInput?.device.minAvailableVideoZoomFactor ?? 1
+  }
+
+  var maxAvailableZoom: CGFloat {
+    return videoDeviceInput?.device.activeFormat.videoMaxZoomFactor ?? 1
+  }
+
+  @objc
+  final func onPinch(_ gesture: UIPinchGestureRecognizer) {
+    guard let device = videoDeviceInput?.device else {
+      return
+    }
+
+    let scale = max(min(gesture.scale * pinchScaleOffset, device.activeFormat.videoMaxZoomFactor), CGFloat(1.0))
+    if gesture.state == .ended {
+      pinchScaleOffset = scale
+      return
+    }
+
+    do {
+      try device.lockForConfiguration()
+      device.videoZoomFactor = scale
+      device.unlockForConfiguration()
+    } catch {
+      invokeOnError(.device(.configureError))
+    }
+  }
+
+  func addPinchGestureRecognizer() {
+    removePinchGestureRecognizer()
+    pinchGestureRecognizer = UIPinchGestureRecognizer(target: self, action: #selector(onPinch(_:)))
+    addGestureRecognizer(pinchGestureRecognizer!)
+  }
+
+  func removePinchGestureRecognizer() {
+    if let pinchGestureRecognizer = pinchGestureRecognizer {
+      removeGestureRecognizer(pinchGestureRecognizer)
+      self.pinchGestureRecognizer = nil
+    }
+  }
+
+  @objc
+  final func zoom(factor: CGFloat, animated: Bool) {
+    guard let device = videoDeviceInput?.device else {
+      return
+    }
+
+    do {
+      try device.lockForConfiguration()
+      let clamped = max(min(factor, device.activeFormat.videoMaxZoomFactor), CGFloat(1.0))
+      if animated {
+        device.ramp(toVideoZoomFactor: clamped, withRate: 1)
+      } else {
+        device.videoZoomFactor = clamped
+      }
+      device.unlockForConfiguration()
+    } catch {
+      invokeOnError(.device(.configureError))
+    }
+  }
+}