Start keeping track of item equip status internally (partially done)

src/Dodge/Inventory/Add.hs

@@ -72,6 +72,7 @@ tryPutItemInInv cid flit w = case maybeInvSlot of
             , _ilIsRoot = False
             , _ilIsSelected = False
             , _ilIsAttached = False
+            , _ilEquipPosition = Nothing
             }
 
 ---- should select the item on the floor if no inventory space?