Add support for recore_v3 keyboard

[joliverMI]

Adding support for version 3 of recore keyboard. It is an ergonomic, split keyboard.

This keyboard has a hardware repeat function that can be customized by users in VIA. The LED colors indicate which type of layer is active and if caps is activated. Those colors can be selected by users using VIA as well.

This is similar to https://github.com/the-via/keyboards/pull/2201 with a different layout.

Description

QMK Pull Request

qmk/qmk_firmware/pull/23320

Checklist

• [X] The VIA support for this keyboard is MERGED in QMK master already (MANDATORY)
• [X] The VIA definition follows the guide here: https://caniusevia.com/docs/layouts
• [X] I have a V3 JSON version for this keyboard definition.(MANDATORY)
• [X] I have formatted the JSON file to have consistent formatting with the rest of the repository.
• [X] I have tested this keyboard definition using VIA's "Design" tab.
• [X] I have tested this keyboard definition with firmware on a device.
• [X] I have assigned alpha keys and modifier keys with the correct colors.
• [X] The Vendor ID is not 0xFEED

[joliverMI]

@Cipulot I just wanted to check to make sure I did everything appropriately. Perhaps this PR is not appearing for review. No rush, just checking!