Allow changing item types

[aaclayton]

Originally in GitLab by @archeresky

While making a new item the user is forced into the initial item type they had chosen during the creation process. In certain scenarios it would be desirable to be allowed to change the item type e.g. treat armor as loot or a consumable as loot, or reverse. To my understanding, this is currently the limitation of the system itself as other systems allow for such changes to be made (pf1e), as such, I would like to request for this option to be implemented.