title: Visual Studio Extensibility (VSX) - Get the current branch name
body: <p>I am developing a Visual Studio extension (VS Package).</p>
  
  <p>I am trying to get the Source Control branch name for a project/solution.</p>
  
  <p>The only source control service available in the VS SDK is SVsSccManager but that doesn't provide any means of retrieving the source control branch name.</p>
  
  <p>Also looked at DTE.SourceControl but alas, it doesn't give branch info.</p>
  
  <p>I really don't want to develop my own Source Control plug-in to simply retrieve the branch name (this feels like total overkill).</p>
  
  <p>Is there any way of retrieving the current branch name in source control for a solution/project?</p>
  
  <p>Thanx in advance.</p>