title: SONAR code violation filtering by user
body: <p>Does anyone know if there is SONAR extension for filtering violations by user/author who introduced them ?</p>
  
  <p>Idea is to pick a user, and SONAR would list all violations made in the code by that specific user.</p>
  
  <p>Maybe some ideas could be provided if it is possible to achieve such functionality ?</p>
  
  <p>Thanks. </p>