[FEAT]: Check Shulker Boxes in Item Type Currencies

[KarlosWGeek]

Feature Description

In a item-based economy (item = currency), the plugin should check inside Shulker Boxes just like it already does with Ender Chests.

Reasoning

Just like Ender Chests, Shulker Boxes are used to carry large quantities of items. So, just like the plugin checks Ender Chests for the item-currency and shows it on the player's balance, the same should be applied to Shulker Boxes.

[NickAwrist]

This would be really cool tbh

[creatorfromhell]

This would be really cool tbh

Indeed, I've added this to the todo for while I'm revamping the currency stuff.