Add Unity GameObject clearAll method

Author: Avaer Kazmer

vrarmik/Rig.js

@@ -12,6 +12,8 @@ const poses = {
 
 class Rig {
 	constructor(model) {
+    GameObject.clearAll();
+
     model.updateMatrixWorld(true);
     let skeleton;
 	  model.traverse(o => {

vrarmik/Unity.js

@@ -358,6 +358,9 @@ class GameObject {
   AddChild(child) {
     this.transform.AddChild(child.transform);
   }
+  static clearAll() {
+    gameObjects.length = 0;
+  }
   static startAll() {
     for (let i = 0; i < gameObjects.length; i++) {
       gameObjects[i].components.forEach(value => {