ArmourEquipEvent - Improvment

Add an Enum that tells you what type of event it is

```java

public enum ACTION {
    EQUIP,
    UNEQUIP;
}

@EventHandler
public void onArmourEquipEvent(ArmourEquipEvent event){
   if (event.ACTION != UNEQUIP) return;
}

```

You could also add an ArmourUnequipEvent
