Adding moth.monster (my) keyboards

[mothdotmonster]

Hi! I've designed a few keyboards that run QMK, so I'd like to upstream them here.

Description

This PR does adds a new keyboard subfolder containing the firmwares for the two keyboards I've designed, OK35 and VEGAS.

Types of Changes

• [ ] Core
• [ ] Bugfix
• [ ] New feature
• [ ] Enhancement/optimization
• [X] Keyboard (addition or update)
• [ ] Keymap/layout/userspace (addition or update)
• [ ] Documentation

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(I apologize if I've made any mistakes in how one should make the perfect PR, I'm not an expert at git.)