Fix issues caused by turning off UVLock

  - UVLock is required off to rotate top texture w/ model
      - This however causes other sides to flip UV
  - To get their old UV back, we flip model coordinates
      - Flipping the x texture coordinates undoes rotation

src/main/resources/assets/immersiveengineering/models/block/ie_scaffoldladder_open.json

@@ -49,7 +49,7 @@
         },
         "east": {
           "texture": "#side",
-          "uv": [15, 16, 0, 0]
+          "uv": [0, 16, 15, 0]
         }
       }
     },