lists of items in conditions such as wearing and holding

Summary

Currently you can put AND conditions using these conditions eg

- wearing{slot=HAND;m=IRON_SWORD} true '- wearing{slot=OFFHAND;m=SHIELD} true'

My idea is for syntax to allow OR conditions.

`- wearing{slot=HAND;m=IRON_SWORD,DIAMOND_SWORD,GOLDEN_SWORD} true'

Usage This could be used anytime an item is required for a skill, but there are multiple items of each type. For example skills that cast while holding any sword.

Value I dont know what to say here.

Priority Moderate - Low priority, maybe when the next set of new mechanics and stuff are implemented

Implementation Syntax for hasitem, holding, wearing - etc conditions

Possibly something like: ```- wearing{slot=HAND;m=IRON_SWORD,DIAMOND_SWORD,GOLDEN_SWORD} true'`` or

```- wearing{slot=HAND,OFFHAND,CHEST;m=IRON_SWORD} true'``