title: Develop hololens in unity with macbook
body: <p>I'm new with unity and hololens and I started to explore it.
  I have a macbook (I don't know if it is a problem).</p>
  
  <p>I downloaded Unity with all the components (Vuforia, IL2CPP etc.).</p>
  
  <p>When I change project settings for the hololens development I have some problems. 
  In particular when I check the box "Virtual Reality Supported" I don't find in the list below the Hololens option. 
  Also if I click on "+" button. I see: Vuforia, Oculus, OpenVr but not Hololens!</p>
  
  <p>Furthermore also in the field: "scripting backend" i found only "none" and "IL2CPP".
  Now, as I already say, i have downloaded all the components during the installation process. 
  Which is the problem?</p>