* Add support for the extra 16 GPIO pins in the menus and core.
* Clean up Generic RP2350 PSRAM ("none" is valid) and flash (other than 16MB) options.
* Add extra GPIO<->peripheral connections
* Add Pimoroni PGA2350 RP2350B-based board
* Pins 32-47 can be used for PIOPrograms
* Avoid hang when PSRAM fails to initialize
* Move libpico to an RP2350B board for SDK (otherwise the SDK drops all GPIOHI support)
* Add a build of all variants to CI using P.IO
* Split out into separate job, use BOOTSEL sketch
* Fix Breadstick variant
* Fix Bridgetech boards with illegal define names
Dash(-) to underscore(_) in define and variant for the -7 and -43.
* Bridgetech JSON updates
* Temporarily remove Bridgetech boards from CI
Needs an update to the P.IO external repo to work since the names
of the boards have changed.
