Readme cleanup
Added console file and icon for the settings dialog.
Switched back to single plugin model
Implemented settings dialog.
Switched constans for QRErrorCorrectLevel enum object.
Reverted back to the previous values of QRErrorCorrectLevel enum constants.
Rendering of dark and light blocks
Added console.enabled property to turn on/off logging.
Changed default block size from 4 to 6 pixels
Source files structure change + Build
Fixed bug with incorrect selection of current Page/ArtBoard as a destination for code layer.
Build and manual testing.
Tiny readme correction.