title: Assets not copied to the dist folder in angular
body: <p>When running <code>ng build --prod</code>, the "assets" folder is not copied.</p>
  
  <pre><code>"root": "src",
    "outDir": "dist",
    "assets": [
      "assets",
      "favicon.ico"
    ],
  </code></pre>
  
  <p>my environment</p>
  
  <pre><code>Angular CLI: 1.7.4
  Node: 8.11.2
  OS: win32 x64
  Angular: 5.2.11
  </code></pre>
  
  <p>Thanks</p>