Add ES Module Shims

demos/hello-three/NOTICE.html

                 License: <a href="#mit">MIT License</a><br>
                 <a href="https://threejs.org" target="_blank" rel="external">https://threejs.org</a>
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+                ES Module Shims: Shims for new ES modules features on top of the basic modules support in browsers<br>
+                Copyright &copy; 2018-present Guy Bedford<br>
+                License: <a href="#mit">MIT License</a><br>
+                <a href="https://github.com/guybedford/es-module-shims" target="_blank" rel="external">https://github.com/guybedford/es-module-shims</a>
+            </li>
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         <p>This application also contains a 3D model of a mage by <a href="https://kaylousberg.com" target="_blank" rel="external">Kay Lousberg</a> and a 3D model of a cat by <a href="https://opengameart.org/content/cat-pilot-rigged-animated" target="_blank" rel="external">Tomcat94</a>, both released under the <a href="#cc0">Creative Commons Zero 1.0 Universal</a>.</p>
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