ARCore SDK for iOS v1.2.0

Initial release alongside ARCore 1.2 on Android.

• Support for Cloud Anchors.
• Supported devices: iPhone X, 8, 8+, 7, 7+, 6S, 6S+, SE.

Known Issues:

• An invalid API key for the ARCore Cloud Anchor Service will result in a
  Cloud Anchor state of GARCloudAnchorStateErrorInternal instead of
  GARCloudAnchorStateErrorNotAuthorized. This is a known issue and will be
  fixed in an upcoming release.