title: how to tell webpack that do not minify and pack js files
body: <p>I'm using vue-cli webpack boilerplate in this address:</p>
  
  <p><a href="https://github.com/vuejs-templates/webpack" rel="noreferrer">vuejs-templates/webpack</a></p>
  
  <p>I want webpack not to minify and pack js files in dev mode.
  how it can be achieved?
  the problem is that we have a huge tested asp.net webforms app, and it already includes jquery and bootstrap, in a way that can not bypassed.
  and i have conflicting jquery and bootstrap.js with vue. that i can not debug them in dev mode.</p>