Fixed scale issue when changing the scale of the root tileset behavio…

…r object at runtime

Assets/Unity3DTiles/Unity3DTile.cs

@@ -283,6 +283,7 @@ public void RequestContent(float priority)
                     go.transform.parent = this.tileset.Behaviour.transform;
                     go.transform.localPosition = Vector3.zero;
                     go.transform.localRotation = Quaternion.identity;
+                    go.transform.localScale = Vector3.one;
                     go.layer = this.tileset.Behaviour.gameObject.layer;
                     go.SetActive(false);
                     this.Content = new Unity3DTileContent(go);