message: Add timing debug output to event display
diff: @@ -546,7 +546,8 @@ int DrawGLScene(bool doAnimation = false) // Here's Where We Do All The Drawing
  static float fpsscale = 1;
  static int framesDone = 0, framesDoneFPS = 0;
  - static HighResTimer timerFPS, timerDisplay;
  + static HighResTimer timerFPS, timerDisplay, timerDraw;
  + bool showTimer = false;
  constexpr const int N_POINTS_TYPE = 9;
  constexpr const int N_LINES_TYPE = 7;
  @@ -686,6 +687,8 @@ int DrawGLScene(bool doAnimation = false) // Here's Where We Do All The Drawing
  //Extract global cluster information
  if (updateDLList || displayEventNr != currentEventNr)
  {
  + showTimer = true;
  + timerDraw.ResetStart();
  currentClusters = 0;
  for (int iSlice = 0; iSlice < fgkNSlices; iSlice++)
  {
  @@ -840,6 +843,10 @@ int DrawGLScene(bool doAnimation = false) // Here's Where We Do All The Drawing
  glDLrecent = 1;
  }
  }
  + if (showTimer)
  + {
  + printf("Draw time: %d ms\n", (int) (timerDraw.GetCurrentElapsedTime() * 1000000.));
  + }
  framesDone++;
  framesDoneFPS++;
  