Add board config system

[ben-hawks]

Create/add a system to support different boards and their hardware configurations, as well as simplify accessing common values/functions across apps.

Likely implemented as done in this project: https://github.com/bablokb/circuitpython-clock/blob/main/src/main.py#L27 https://github.com/bablokb/circuitpython-clock/blob/main/src/config/pimoroni_badger2040w.py

[ben-hawks]

Basic implementation in 73e4e6c515b2bacf29d9e044afefbfa290251c15, still need to update/extend usage of the config object to be used across system files.

[ben-hawks]

Moving to QoL/Nice to have, as the system works for the DC32 badge, but this would be nice to flesh out to support other hardware, too.