ECS - add EntityUtils.GetRelations(Entity)

Author: friflo

src/ECS/Entity/EntityUtils.cs

@@ -90,6 +90,19 @@ public static T CopyComponent<T>(T component, Entity source, Entity target)
 
     #endregion
 
+#region relations
+    public static ComponentTypes GetRelations(Entity entity)
+    {
+        var isOwner = entity.store.nodes[entity.Id].isOwner; 
+        if (isOwner == 0) {
+            return default;
+        }
+        ComponentTypes relationTypes = new ComponentTypes();
+        relationTypes.bitSet.l0 = isOwner & EntityStoreBase.Static.EntitySchema.relationTypes.bitSet.l0;;
+        return relationTypes;
+    }
+    #endregion
+    
     // ------------------------------------------- internal methods -------------------------------------------
 #region internal - methods
     internal static int ComponentCount (this Entity entity) {