* Initial tidying up of top level helix/ directory
Align readme.md with template & provide more detailed PCB information
Remove unused rules.mk
Add common config.h file
Update glcdfont.c with formatting and license header
* Further migrations after PRs merged
Move shared configuration to top level info.json and config.h
More descriptive hardware compatibility
* Add changelog
* Align configuration between PCBs
- Migrate beta & pico to use RGB Matrix
- Move previously RGB Matrix-dependent OLED code in rev3/rev3.c to top level
- Remove reundant OLED code in beta/beta.c
- Remove RGBLight references
* Update changelog with RGB Matrix configuration
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