PZN8 support still in planning? #167

Hello,

I was wondering if PZN8 support is still in the planning. In codex.py (line 115-118) a comment states that the support was already planned for release with v0.9. Is this still in progress or am I missing something?

class PZN8(PZN7):
"""Will be fully added in v0.9."""
digits = 7

https://github.com/WhyNotHugo/python-barcode/blob/main/barcode/codex.py#:~:text=class%20PZN8(,digits%20%3D%207