change to building eTowers via eFexTowers by default
This MR is to test what impact, if any, there is from enabling the eTower construction via eFexTowers, i.e. deprecating the eTowerMakerFromSuperCell algorithm
This MR is to test what impact, if any, there is from enabling the eTower construction via eFexTowers, i.e. deprecating the eTowerMakerFromSuperCell algorithm