Manually restarting `ng build --watch` or `ng serve` : <p>When we use nodemon, for example, we can manually trigger a rebuild by typing <code>rs</code> to stdin and hitting return/enter.</p>

<p>I am wondering if there is a way to manually trigger a rebuild when using <code>ng build --watch</code> or <code>ng serve</code>. On occasion, these fail to pick up files, or fail during a bigger refactor. Instead of using ctrl-c, I am wondering if there is a way to type something into stdin.</p>
