Add meshopt_decoder.module.js
Add meshopt_decoder.module.js

This allows to use a ES6 style import that doesn't modify globals, e.g.

import { MeshoptDecoder } from './jsm/libs/meshopt_decoder.module.js';

greggman/three.js,06wj/three.js,gero3/three.js,aardgoose/three.js,kaisalmen/three.js,Liuer/three.js,looeee/three.js,WestLangley/three.js,mrdoob/three.js,06wj/three.js,fyoudine/three.js,kaisalmen/three.js,makc/three.js.fork,donmccurdy/three.js,WestLangley/three.js,jpweeks/three.js,looeee/three.js,greggman/three.js,jpweeks/three.js,donmccurdy/three.js,fyoudine/three.js,gero3/three.js,mrdoob/three.js,makc/three.js.fork,Liuer/three.js,aardgoose/three.js