Add support for ItemHooks in Has Item requirement

[Tanguygab]

Examples:

    <type>_requirement:
      requirements:
        item:
          type: "has item"
          material: head-Tanguygab
          material: texture-f3d5e43de5d4177c4baf2f44161554473a3b0be5430998b5fcd826af943afe3
          material: basehead-eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZjNkNWU0M2RlNWQ0MTc3YzRiYWYyZjQ0MTYxNTU0NDczYTNiMGJlNTQzMDk5OGI1ZmNkODI2YWY5NDNhZmUzIn19fQ==
          material: mmoitems-<type>:<id>
          material: itemsadder-<id>

Confirmed head, texture and basehead working, and got confirmation for mmoitems.
Others should work as well but if anyone is willing to check for ItemsAdder, HDB, Oraxen and ExecutableItems, that'd be nice