* add OBJLoader

* add MTLLoader
* Geometry merge add parameter
* Object3D onBeforeRender, on AfterRender
* Object3D add delete fixed number of parameters

types/three/three-objloader.d.ts

@@ -0,0 +1,21 @@
+
+import {Material} from "./three-core";
+import {LoadingManager} from "./three-core";
+import {Group} from "./three-core";
+import {MaterialCreator} from "./three-mtlloader";
+
+export class OBJLoader {
+
+    constructor(manager?: LoadingManager);
+    manager: LoadingManager;
+    regexp: any;
+    materials: Material[];
+    path: string;
+
+    load(url: string, onLoad: (group: Group) => void, onProgress?: (event: any) => void, onError?: (event: any) => void): void;
+    parse(data: string) : Group;
+    setPath(value: string) : void;
+    setMaterials(materials: MaterialCreator) : void;
+    _createParserState() : any;
+
+}