It looks like zbar is a dependency of this project but I can't seem to `pip install zbar` with python version 3.8.5. [There are a lot of posts suggesting you cannot use zbar with Python 3](https://stackoverflow.com/questions/33355400/how-do-i-import-zbar-into-my-python-3-4-script/44740672). Is it possible to change dependencies so that qrtools can work with Python 3?