title: Multi line format string support in c#/visual studio
body: <p>Is there a way to have multiline string support (not verbatim string literals as that honours carriage returns, etc) and without letting the UI add '+' to the end of every line (which I presume means the string table being needlessly added to). </p>
  
  <p>In other words to separate a long line of formatting across multiple lines.</p>
  
  <p>If I press return on the below code the editor is automatically turning this:</p>
  
  <pre><code>Console.WriteLine($"{a} : {b} : {c}");
  </code></pre>
  
  <p>In to this:</p>
  
  <pre><code>        System.Console.WriteLine($"" +
              $"{a} : " +
              $"{b} : " +
              $"{c}");
  </code></pre>
  
  <p>I was hoping to do something like this, or similar</p>
  
  <pre><code>        System.Console.WriteLine($"{a} : " _ 
              "{b} : " _
              "{c}");
  </code></pre>
  
  <p>Thanks. Bonus points if it works in Vb.Net too ;-)</p>