Add missing change

Tools/Gulp/config.json

@@ -1538,7 +1538,8 @@
                     "../../loaders/src/glTF/2.0/Extensions/KHR_draco_mesh_compression.ts",
                     "../../loaders/src/glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts",
                     "../../loaders/src/glTF/2.0/Extensions/KHR_materials_unlit.ts",
-                    "../../loaders/src/glTF/2.0/Extensions/KHR_lights.ts"
+                    "../../loaders/src/glTF/2.0/Extensions/KHR_lights.ts",
+                    "../../loaders/src/glTF/2.0/Extensions/KHR_texture_transform.ts"
                 ],
                 "doNotIncludeInBundle": true,
                 "output": "babylon.glTF2FileLoader.js"
@@ -1562,7 +1563,8 @@
                     "../../loaders/src/glTF/2.0/Extensions/KHR_draco_mesh_compression.ts",
                     "../../loaders/src/glTF/2.0/Extensions/KHR_materials_pbrSpecularGlossiness.ts",
                     "../../loaders/src/glTF/2.0/Extensions/KHR_materials_unlit.ts",
-                    "../../loaders/src/glTF/2.0/Extensions/KHR_lights.ts"
+                    "../../loaders/src/glTF/2.0/Extensions/KHR_lights.ts",
+                    "../../loaders/src/glTF/2.0/Extensions/KHR_texture_transform.ts"
                 ],
                 "output": "babylon.glTFFileLoader.js"
             }