Feature Request - Add qrencode/pillow and automatically generate QR code file

[cbasolutions]

This package allowed me to generate the code from the CLI using a pure Python solution

https://pypi.org/project/qrcode/

[dlenski]

I actually removed these dependencies way back in 17710cd, since PIL/Pillow are rather heavyweight and not needed for a lot of users.

The README already explains how to do this, since 4017c90.

Could you create a PR to re-add them as optional ("extras") dependencies and to add a vipaccess provision --print-qr option in that case?