title: Is there an easy way to add multiple projects to a solution?
body: <p>In some solutions I use direct references to internal projects during development and switch to nuget references for release. However, adding 30+ projects to new solutions manually is a tedious task. </p>
  
  <p>I was wondering whether there is a quicker way to do this. With projects it's pretty easy because you just copy/paste the xml but solution files are not that easy to edit but maybe there is some trick?</p>