Event command enhancement: drop item

[PyroTech03]

I'd like to suggest adding an option to the change iyem/equipment command to allow us to drop an item from inventory.

Example use case, I have an item that when picked up it equips itself. If they unequip it would drop to the ground. This creates items that must be equipped to have on your person for example, a large item that must be carried and takes weapon slot and 2 handed. If unequipped, it drops.

This generally allows us more flexibility to how we can manipulate items and inventory via events.