renamed extension to avoid name conflicts with glTF loader

Tools/Gulp/config.json

@@ -1850,7 +1850,7 @@
                     "../../serializers/src/glTF/2.0/babylon.glTFUtilities.ts",
                     "../../serializers/src/glTF/2.0/babylon.glTFExporterExtension.ts",
                     "../../serializers/src/glTF/babylon.glTFFileExporter.ts",
-                    "../../serializers/src/glTF/2.0/Extensions/KHR_texture_transform.ts"
+                    "../../serializers/src/glTF/2.0/Extensions/Exporter_KHR_texture_transform.ts"
                 ],
                 "shaderFiles": [
                     "../../serializers/src/glTF/2.0/shaders/textureTransform.fragment.fx"

serializers/src/glTF/2.0/Extensions/KHR_texture_transform.ts

@@ -17,7 +17,7 @@ module BABYLON.GLTF2.Extensions {
     /**
      * @hidden
      */
-    export class KHR_texture_transform implements IGLTFExporterExtension {
+    export class Exporter_KHR_texture_transform implements IGLTFExporterExtension {
         /** Name of this extension */
         public readonly name = NAME;
 
@@ -100,5 +100,5 @@ module BABYLON.GLTF2.Extensions {
         }
     }
 
-    _Exporter.RegisterExtension(NAME, exporter => new KHR_texture_transform(exporter));
+    _Exporter.RegisterExtension(NAME, exporter => new Exporter_KHR_texture_transform(exporter));
 }