message: Switch graph panning to left click only
diff: //$ TODO: Add information about each comm (total events), etc. in the
  // Trace Info header.
  -//$ TODO: do a pan with just a single click, not ctrl+click.
  -
  //$ TODO: Show drm_vblank_event crtc:0 (blue) or crtc1:1 (red)
  //$ TODO: Make colors configurable so they're easy to distinguish.
  @@ -1799,7 +1797,8 @@ void TraceWin::render_mouse_graph( class graph_info_t *pgi )
  }
  else if ( m_mouse_captured == 2 )
  {
  - // ctrl + click: pan
  + // click: pan
  + //$ TODO mikesart: pan vertically as well
  if ( ImGui::IsMouseDown( 0 ) )
  {
  float dx = gi.mouse_pos.x - m_mouse_capture_pos.x;
  @@ -1838,9 +1837,9 @@ void TraceWin::render_mouse_graph( class graph_info_t *pgi )
  ImGui::CaptureMouseFromApp( true );
  m_mouse_capture_pos = gi.mouse_pos;
  }
  - else if ( mouse_clicked && ImGui::GetIO().KeyCtrl )
  + else if ( mouse_clicked )
  {
  - // ctrl + click: pan
  + // click: pan
  m_mouse_captured = 2;
  ImGui::CaptureMouseFromApp( true );
  m_mouse_capture_pos = gi.mouse_pos;
  @@ -1887,7 +1886,7 @@ void TraceConsole::init( CIniFile *inifile )
  logf( "graph shortcuts:" );
  logf( " double click: go to location in event list" );
  logf( " shift+click+drag: zoom to selection" );
  - logf( " ctrl+click+drag: pan graph" );
  + logf( " click+drag: pan graph" );
  //$ TODO mikesart: use https://github.com/SirCmpwn/libccmd.git
  //$ TODO mikesart: add "load" command
  