More PowerEntry parsing work.

src/engine/wpak/data/PowerEntry.java

@@ -51,5 +51,6 @@ public class PowerEntry {
     public boolean bladeTrails = false;
     public EquipmentPreReq equipmentPreReq;
     public EnumSet<mbEnums.MonsterType> monsterRestricts = EnumSet.noneOf(mbEnums.MonsterType.class);
+    public EnumSet<mbEnums.MonsterType> monsterPrereqs = EnumSet.noneOf(mbEnums.MonsterType.class);
     public boolean shouldCheckPath = false;
 }