QR Debug

Thanks to feedback from reviews (sorry that it took me so long to realize there were any), I have added some new features: * QR codes now display their Error Correction level and Symbol Version * All buttons have been moved to a toolbar so that they do not obscure the scanned data * When a code is scanned, a new button will show up in the bottom toolbar that allows you to toggle between the image captured by the camera and the data contained in the code. * Ability to load codes from your camera roll to analyze instead of having to scan the image directly. This is available via a button in the lower left of the scanner view. * Share sheet (iOS 16 only). If you are displaying the image of the scanned code, the share sheet will share the image, otherwise it will share the data in the scanned code. * Settings to control the behavior of the scanner. You can enable/disable the following features: ** Vibrate on Scan (if supported by the device): when enabled, the device will vibrate when a code is successfully recognized by the camera) ** Manual Capture: when enabled, the familiar camera shutter button will display at the bottom of the view and must be tapped to scan the code, otherwise the camera will automatically scan the first code it sees ** Show View Finder: when enabled, a view finder image will overlay on the scanner view