title: Override an export from another library es6
body: <p>Given a javascript library (let's say <code>supportlibrary</code>) which has 100 named exports, I want to create my own <code>compat-library</code> which exports all named exports from <code>supportlibrary</code> but override a single named export with another. </p>
  
  <p>For now, I can export all 99 named exports manually, but this would be a tedious job. I rather would have something like: </p>
  
  <pre><code>import {SupportComponent as ExcludedSupportComponent,...rest} from 'supportlibrary';
  import SupportComponent from './MySupportComponent';
  
  export {
      ...rest,
      SupportComponent
  }
  </code></pre>
  
  <p>Is something like this possible using es6 / tc39-stage-x functionality? or is this only possible with <code>CommonJs</code>? </p>