message: Add check for entire graph row being clipped before rendering
diff: > separate rows in the graph, and I also want to be able to define "begin" and
  > "end" events which gets translate into bars in gpuvis
  - Check if entire rows are clipped when drawing...
  -
  Feedback:
  - the gfx waterfall view was confusing to everyone, zoomed in or not.
  They were all expecting something like the gpuview "stacked" view where
  @@ -320,7 +318,7 @@ static bool imgui_is_rect_clipped( float x, float y, float w, float h )
  if ( ( x > cr.z ) || ( x + w < cr.x ) )
  return true;
  - if ( ( y > cr.w ) || ( y + w < cr.y ) )
  + if ( ( y > cr.w ) || ( y + h < cr.y ) )
  return true;
  return false;
  @@ -2532,6 +2530,8 @@ void TraceWin::graph_render()
  float y = windowpos.y + ri.row_y + start_y;
  gi.set_pos_y( y, ri.row_h, &ri );
  +
  + if ( !imgui_is_rect_clipped( gi.x, gi.y, gi.w, gi.h ) )
  graph_render_row( gi );
  }
  }
  