Loot Cooldown Implementation

Added a RECAST_LOOT enumeration that tracks the cooldown between looting an item (such as beastmen's seals in this case).

Added a method that stamps all party members (or solo players) when they loot a beastmen's seal.
Method checks for the stamp and if the cooldown (default 5 mins) isn't up, they cannot loot a beastmen's seal.