title: need TestNG run option in RCP application
body: <p>I have have implementaed a plugin project and want to use <code>TestNG</code> tab for runner purpose in this application. I have a solution for <code>JUnit</code> but in <code>TestNG</code> still I am stuck. Please help out from this situation. Kindly find the <code>JUnit</code> configuration tab code in below:</p>
  
  <pre><code>public void createTabs(ILaunchConfigurationDialog dialog, String mode) {
      ILaunchConfigurationTab[] tabs = new ILaunchConfigurationTab[] { 
          new JUnitLaunchConfigurationTab(), 
          new JavaArgumentsTab(), 
          new JavaClasspathTab(), 
          new JavaJRETab(), 
          new SourceLookupTab(), 
          new EnvironmentTab(), 
          new CommonTab() 
      }; 
      setTabs(tabs); 
  } 
  </code></pre>
  
  <p>Please suggest.</p>