forked from CGM_Public/pretix_original
Move generation of QR code contents out of the HTML template and into Python code, so it can be reused in plugins and tested with unit tests. Add the SPAYD QR code format which is used in Czech Republic and Slovakia [1]. Display BezahlCode QR codes only for German IBANs. [1] https://en.wikipedia.org/wiki/Short_Payment_Descriptor