Read item eq slots from the cache template

isTwoHanded, validForSlot, getSwingAnimation and the mob equipment set
read getItemEqSlotsOr/And, which drop the exporter's NONE. Offline parity
(p15c.py, 7586 rows): 0 differences once NONE is ignored.

Value changes:
- validForSlot: items whose only slot is NONE no longer pass for slot NONE.
- getSwingAnimation: the 7 slotless weapons (Rock 19297, Arrow 25650,
  siege ammo 29000/29010/29020/29030/29350) return the default 75 instead
  of indexing their empty left-hand anim list.
- MobBase equipment sets skip slotless items instead of keying them under
  NONE. No EQUIP booty entry references one (the 104 sets that do are ITEM
  booty sets).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/engine/gameManager/ItemManager.java

@@ -95,7 +95,7 @@ public enum ItemManager {
         if (!item.template.cacheTemplate.getItemType().equals(mbEnums.ItemType.WEAPON))
             return false;
 
-        return item.template.item_eq_slots_and.containsAll(EnumSet.of(mbEnums.EquipSlotType.LHELD, mbEnums.EquipSlotType.RHELD));
+        return item.template.cacheTemplate.getItemEqSlotsAnd().containsAll(EnumSet.of(mbEnums.EquipSlotType.LHELD, mbEnums.EquipSlotType.RHELD));
     }
 
     public static boolean isTwoHanded(ItemTemplate template) {
@@ -103,7 +103,7 @@ public enum ItemManager {
         if (!template.cacheTemplate.getItemType().equals(mbEnums.ItemType.WEAPON))
             return false;
 
-        return template.item_eq_slots_and.containsAll(EnumSet.of(mbEnums.EquipSlotType.LHELD, mbEnums.EquipSlotType.RHELD));
+        return template.cacheTemplate.getItemEqSlotsAnd().containsAll(EnumSet.of(mbEnums.EquipSlotType.LHELD, mbEnums.EquipSlotType.RHELD));
     }
 
     public static boolean isShield(Item item) {
@@ -130,7 +130,7 @@ public enum ItemManager {
             return false;
         //Item not valid for slot
 
-        if (item.template.item_eq_slots_or.contains(slot) == false)
+        if (item.template.cacheTemplate.getItemEqSlotsOr().contains(slot) == false)
             return false;
 
         // Slot is taken