[Player][Interaction][Assets] Add placeholder assets for some more sprites. Move all to External/Placeholder. Add list of assets with attributions. Pulver combines items now

Assets/Scripts/GameManager.cs

@@ -44,5 +44,18 @@ public class GameManager : MonoBehaviour
     public float FollowerSpeedMultiplier => gameSettings != null ? gameSettings.followerSpeedMultiplier : 1.2f;
     public float HeldIconDisplayHeight => gameSettings != null ? gameSettings.heldIconDisplayHeight : 2.0f;
     public GameObject BasePickupPrefab => gameSettings != null ? gameSettings.basePickupPrefab : null;
+
+    public GameSettings.CombinationRule GetCombinationRule(PickupItemData item1, PickupItemData item2)
+    {
+        if (gameSettings == null || gameSettings.combinationRules == null) return null;
+        foreach (var rule in gameSettings.combinationRules)
+        {
+            if ((rule.itemA == item1 && rule.itemB == item2) || (rule.itemA == item2 && rule.itemB == item1))
+            {
+                return rule;
+            }
+        }
+        return null;
+    }
     // Add more accessors as needed
 }