SkinLib version of Woulds' Koishi plush over 343d Hand Grenade

known issues:
koishi custom hud icon is currently not implemented

the model is made by 203Null on sketchfab! https://sketchfab.com/3d-models/project-koishi-komeiji-fumo-37a56b489b5c4440bbabb7b7777036f6