Skins of the same item type conflict

Display issue only. Known vanilla bug. Planned to be mitigated by the plugin, but blocked until the next Rust update due to vanilla bugs that affect UI modding capability. Aiming to release a plugin update on July 7th.

I just released v2.7.0 which adds a config option to address this. While enabled, if the vending machine sells multiple skins of the same item, the plugin will overlay the correct skin icon.