title: Where does `pub get` download pubspec dependencies to?
body: <p>In javascript, we have NPM and the <code>node_modules</code> folder in every project. I was not able to find a similar concept for Dart/ Flutter, except the <code>build</code> folder in my app, which contains a folder of a few dependencies I have in <code>pubspec.yaml</code>. It doesn't have any of the source code though, and I think it's actually built from something else. I've also looked in <code>/usr/local/flutter/packages</code> which is where my flutter is installed, but it only shows <code>flutter_driver</code>, <code>flutter_goldens</code>, and more seemingly unrelated folders.</p>
  
  <p>I guess if wanted to read the source code, I really need to find the repo and read from that, or is there a location for dependencies I haven't looked?</p>
  
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  <p>I even found <code>projectDir/.dart_tool/pub</code>, which didn't have any of my packages.</p>