Update setup for cluster-based electron trigger matching
A few updates to the skeleton for matching offline electrons to online electrons based on their cluster positions. Analysis AODs in the AODSlim EDM don't store the online clusters, so we can't use the link from the electron to the cluster and instead need to use a decoration. This adds that option to the scoring tool and a config option in the trigger matching config to use this in derivations.
Addresses ATR-27458
Edited by Jonathan Long