Change DefaultDropHandler.TestCompatibleTypes check from IEditableCol…

…lectionView to ICollectionView

src/GongSolutions.WPF.DragDrop/DefaultDropHandler.cs

@@ -267,7 +267,7 @@ protected static bool TestCompatibleTypes(IEnumerable target, object data)
             }
             else
             {
-                return target is IList || target is IEditableCollectionView;
+                return target is IList || target is ICollectionView;
             }
         }
     }