message: Add bare controls for tooltip use
diff: @@ -249,6 +249,15 @@ private:
  Button mBtnToggleHeightmap;
  Button mBtnToggleConnectedness;
  + // Bare Control's use for ToolTips
  + Control mTooltipSystemButton;
  + Control mTooltipCurrentTurns;
  + Control mTooltipPopulation;
  + Control mTooltipEnergy;
  + Control mTooltipFoodStorage;
  + Control mTooltipResourceStorage;
  + Control mTooltipResourceBreakdown;
  +
  ToolTip mToolTip;
  IconGrid mStructures{"ui/structures.png", 46, constants::MARGIN_TIGHT};
  