Clarify EcalBarrel clusters naming in full simulation outputs

Right now we have EcalBarrelClusters and EcalBarrelScFiClusters. People assume (by mistake) that EcalBarrelClusters is what they should use.

Full simulation uses this reconstruction: https://eicweb.phy.anl.gov/EIC/benchmarks/reconstruction_benchmarks/-/blob/master/benchmarks/full/full_reconstruction.sh