Unique Relics

Some Relics have unique properties that could conflict with the usage of other unique relics of the same category.

The Unique Categories include:
 * Unique Bomb Relics
 * Unique Throw Relics
 * Unique Boot Relics

The player can only have one of these relics at a time (except for the case of Combined Relics)

If the player already has a unique relic and decides to pick up another one from the same category, it will drop the relic they had on the ground.

This can cause an interaction with the curse which has the chance of converting the dropped relic to a potion.