Ensure consistency between number of brems and brem states
requested to merge goetz/athena:ATLASRECTS-6571_master_Fix_inconsistency_in_brem_storage_size into 22.0-mc20
For electrons the number of brems was forced to one or zero, neglecting that elsewhere the number of brems was determined from the states of a trajectory. In some cases there were more than one brem-states for electron trajectories which caused range errors. These range errors are addressed here by ensuring that the number of brems.
Addresses ATLASRECTS-6571