Add LilyGo T-Display RP2040
Depends on https://github.com/adafruit/circuitpython/pull/6037
Making this a draft so it's not merged before https://github.com/adafruit/circuitpython/pull/6037 is done.
I noticed that the board_id and board filename don't match the actual board's id: lilygo_t_display_rp2040. This must be older than the additional checks we added in last year or it likely wouldn't have passed.
I pushed the requested updates by @rcarteraz as this is pretty stale. I also fixed some other spelling issues.
Looks good with the fixes I pushed.
Thank you! 🥳
Wait no. Apparently it includes a year's worth of fixes. Need to rebase...
Rebase successful.