Add use limitations to enchantment basins

[Dr. B]

This would add an option to limit who can use an item by alignment, race, or class. The idea is that some characters may not want certain items falling into certain hands.

For example:
-a paladin may not want a powerful weapon being wielded by evil characters.
-a blackguard devoted spreading evil might want their goods to be usable only by evil characters.
-a xenophobic drow may not want their items being used by humans.
-etc.

Ideally, this would be on the less costly side, especially since its primary use might be for items sold in shops.

[Sincra]

Denied due to ongoing work by myself.