Add empty subclass of UIView to project.
Draw QR code matrix on view.
Draw the image on the center of view.
Adapt the image size to view size.
Make the border width configurable.
Fill drawing area with background color.
Merge branch 'feature/Create_QRImageView_for_displaying_QR_code' into develop
Add simple demo of QRImageView.
Merge branch 'release/Add_new_class_QRImageView_for_displaying_QR_code'