Create pi40.json

[ziptyze]

First version of the configuration .json for 1upkeyboards pi40

Description

This is the first version of the .json for the pi40, a keyboard by 1upkeyboards using a Raspberry Pi Pico for the controller. It uses a rp2040 microcontroller, and support has recently been added to QMK. The board is a 4x12 ortho board with per-key RGB, a rotary encoder, and an oled.

QMK Pull Request

qmk/qmk_firmware#18207

Checklist

• The VIA support for this keyboard is in QMK master already (MANDATORY)
• The VIA definition follows the guide here: https://caniusevia.com/docs/layouts
• I have tested this keyboard definition using VIA's "Design" tab.
• I have tested this keyboard definition with firmware on a device.
• I have assigned alpha keys and modifier keys with the correct colors.
• The Vendor ID is not 0xFEED

[ziptyze]

QMK merge has occurred

[Xelus22]

LGTM. Thanks!