Add NK87

[yiancar]

Description

Relevant QMK commit: qmk/qmk_firmware#9965

QMK Pull Request

Checklist

• The QMK source code follows the guide here: https://caniusevia.com/docs/configuring_qmk
• 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

[wilba]

@yiancar pls... alpha colored nav keys and F keys? Mod colored backslash? ACCENT SPACEBAR ON A TKL??? SMH....

;-)

[yiancar]

whatever I do is wrong :(((((

[yiancar]

fixed