* initial implementation of barcode generation using plugins
* implement short QR code scanning
* add PUI qrcode preview
* use barcode generation for CUI show barcode modal
* remove short qr prefix validators and fix short qr detection regex
* catch errors if model with pk is not found for scanning and generating
* improve qrcode templatetag
* fix comments
* fix for python 3.9
* add tests
* fix: tests
* add docs
* fix: tests
* bump api version
* add docs to BarcodeMixin
* fix: test
* added suggestions from code review
* fix: tests
* Add MinLengthValidator to short barcode prefix setting
* fix: tests?
* trigger: ci
* try custom cache
* try custom cache ignore all falsy
* remove debugging
* Revert "Add MinLengthValidator to short barcode prefix setting"
This reverts commit 76043ed96b.
* Revert "fix: tests"
This reverts commit 3a2d46ff72.