Add eta and phi float values to gFexTowers EDM
With this MR the gFexTower EDM is modified to include aux variables corresponding to the float values of eta and phi. The L1_gFexDataTowers container is initialized accordingly.
With this MR the gFexTower EDM is modified to include aux variables corresponding to the float values of eta and phi. The L1_gFexDataTowers container is initialized accordingly.