QR Code Dog Tag

This is simple dog tag with a QR Code, where you can encode URL or other contact information. The model is parametric and its size adapts to amount of data encoded in the QR code.

To generate the `qr_data` variable holding the QR Code data, use my [OpenSCAD QR Code Generator](https://ridercz.github.io/OpenSCAD-QR/).

The SCAD file generates two objects, you are supposed to glue them back to back with superglue and form a single badge. The model requires Prusa ColorPrint or other similar sof