title: Generate two different index files for RTL and LTR support using Webpack
body: <p>I am trying to have two different style files in my react application to support both RTL and LTR directions. Therefore, I am using RTLCSS and its Webpack plugin to generate two different files: (myfile.chunk.css and myfile.chunk.rtl.css). </p>
  
  <p>However, in the index.html file generated by HtmlWebpackPlugin, one of them is injected. How can I have two index files like index.html and index.rtl.html?
  The second file should contain RTL style files including RTL chunks.</p>