fixing inclusion of legacy L1 MET/sumET in AODs produced by L1TopoSimulationConfig

Ralf Gugel requested to merge rgugel/athena:topoSimConfig_legacyL1MET into 23.0

The L1TopoSimulationConfig is used "standalone" to produce special AODs (currently from RAW, including essentially only L1 objects and decisions) for commissioning purposes. The legacy L1Calo MET/sumET objects were not properly stored so far as their somewhat deviating naming schemes for Aux branches and types were not accounted for. This MR rectifies that.

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