A way to set this flag is not yet exposed in the scenario editor.
The flag is intended only for non-stackable items, but this currently isn't enforced.
Items now have a maximum number of charges, which is equal to their default number set in the item record.
Enchanted items with charges are now rechargeable.
- For monster attacks, 'd4' now means '1d4' instead of '0d4', and simple numbers without a 'd' are not accepted
- Pop string path after pushing it in the shop test cases
