Nomad Shotgun - New Unique Drop

[BrotherHangyul]

About The Pull Request

The Nomad Shotgun is a 4-round hunting shotgun that spawns in the 'unique' loot pool. It features very high melee damage, and is intended for use in CQC.

Credit to Yuffels for the sprite, Nomad for the concept. Requested BY Nomad, not a paid commission.

Pre-Merge Checklist

• [ ] You tested this on a local server.
• [ ] This code did not runtime during testing.
• [ ] You documented all of your changes.

Changelog

:cl: add: Nomad unique shotgun. /:cl: