Easy Skins

Fixed:

1. Debug print
2. Potential exploit
3. Icons not working for self added materials
4. Base skin not working for weapons using workarounds

Changed:

1. Base skin now used in inventory preview if no skin is set

Added:

1. Material Browser
2. Folder search filter
3. Material preview on model
4. Can be used to check if material works on weapons

New:

1. Gift Skin
2. Inventory -> Right Click -> Gift
3. Players can gift purchased skins to other players