Draft: Updating caloRinger containers and including new egamma flags
This MR is to update the CaloRinger containers, putting:
'xAOD::RingSetContainer#PhotonRingSets', 'xAOD::RingSetAuxContainer#PhotonRingSetsAux.', 'xAOD::CaloRingsContainer#PhotonCaloRings', 'xAOD::CaloRingsAuxContainer#PhotonCaloRingsAux.'
as default (instead your conterpart for electrons that we have today). In this MR we have the inclusion of new set of egamma keys for Ringer, to be able to select the type of ringer features that we might want in the AOD output, using ConfigFlags.
pinging: @christos , @turra , @jlieberm,@damazio and @jodafons to comment and check the implementation.