title: Visual Studio 2015 missing 'Add Fakes...' option
body: <p>I have VS 2015 professional with update 2 and am missing the option to add a fakes assembly:</p>
  
  <p><a href="https://i.stack.imgur.com/nMLBR.png" rel="noreferrer"><img src="https://i.stack.imgur.com/nMLBR.png" alt="enter image description here"></a></p>
  
  <p>I use this same project on a different machine using VS 2013 and can add fakes fine to that. Am I meant to do something different in 2015?</p>
  
  <p>Thanks</p>