Add VIA V3 support for Prototypist PCBs: PT80 and PT60, and Oceanographer

[Anjheos]

Adding VIA support for Proto[Typist]'s recent projects.

Description

Adding VIA support for Proto[Typis]'s in-house PCBs: PT-80 and PT-60.

Adding VIA support for the Oceanographer keyboard.

QMK Pull Request

PT80 and PT60 PR:
qmk/qmk_firmware#19958

Oceanographer PR:
qmk/qmk_firmware#20324

Checklist

• The VIA support for this keyboard is MERGED in QMK master already (MANDATORY)
• The VIA definition follows the guide here: https://caniusevia.com/docs/layouts
• I have a V3 JSON version for this keyboard definition.(MANDATORY)
• 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