CLI: Parse USB device version BCD

[fauxpark]

Description

DEVICE_VER is a BCD value in the format MMmr. This enhances the mapping between info.json and config.h from a simple 4 digit hex number to a version string.

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).

[fauxpark]

There are a handful of boards with DEVICE_VER digits > 9, these throw up a warning in qmk info:

⚠ 40percentclub/25: DEVICE_VER->usb.device_ver: invalid literal for int() with base 10: '0F'

40percentclub/25
40percentclub/5x5
40percentclub/6lit
40percentclub/foobar
40percentclub/half_n_half
boston_meetup/2019
coarse/ixora
coarse/vinta
handwired/qc60
lets_split_eh
ramonimbao/squishytkl
spacetime

[fauxpark]

Last failing test is expected, due to the boards listed above which have invalid digits.

[tzarc]

If we can fix up the conflicts, this can go in.

[fauxpark]

I'm not sure what you mean. You can see here, and in the actual USB spec, that this value is indeed BCD and should be treated as such: https://www.beyondlogic.org/usbnutshell/usb5.shtml#DeviceDescriptors

Therefore, digits greater than 9 are not allowed.