New method to resolve the TRefs and clone the raw-data itself. Will be used in order to clone the raw-data event while creating a single-event raw-reader within the online display/reco. For the moment it seems the best method to do the job. However it will not work in case of two processes (alieve + aliroot) and exchange of event data via sockets. The reason is that the fRawData is non-persistent member of AliRawEquipmentV2.