Add Jumperless and Jumperless V5 to supported boards

[Architeuthis-Flux]

Hey, I think the hardware for Jumperless V5 is settled enough that it's time to add it to the supported boards list.

And @earlephilhower, if you would like a V5 to play with, just let me know.

Thanks for the excellent core and crazy fast RP2350B support!

[earlephilhower]

Minor tweak to makeboards and a rerun and you should be good.

Appreciate the offer, but you've already done enough for the project with the 2350 donations. Having two dozen Pico, Pico2, and ESP32 boards with meters of wire wrap and "Dupont" jumpers on my desk is how I keep my street cred. 😆

[Architeuthis-Flux]

Haha cool, keep your street cred. The makeboards.py should be fixed, thanks!

[earlephilhower]

Change looks good, but somehow you've got a git commit changing the RWX bits on tools/makeboards.py breaking CI. I think git add --chmod=+x tools/makeboards.py will clear that up...