Typescript does not copy d.ts files to build : <p>So maybe I'm confused, but I thought that if I added <code>declaration:true</code> to my tsconfig.json I could have it tsc copy my <code>*.d.ts</code> files, along side the transpiled code &amp; it's <code>d.ts</code> files?</p>

<p>EG:</p>

<pre><code>- src
 - lib
   - types.d.ts
   - foo.ts
</code></pre>

<p>I would expect the result of tsc to be something like:</p>

<pre><code>- build
 - lib
   - types.d.ts
   - foo.js
   - foo.d.ts
</code></pre>

<p>However, I can't seem to get <code>types.d.ts</code> to be copied to my build directory.  </p>

<p>Does typescript not provide any mechanism to copy <code>.d.ts</code> files?  Or do I just have a misconfiguration somewhere? (I've tried a lot of different configurations at this point; nothing seems to work)</p>
