merge process updates all Patient resources to target subject
what should we do with EoC/CTs??
two scenarios
update EoC/CT too, then we could have two 'active' sets. At the moment not allowed (Bug!)
If the episodes are non-overlaping, no problem, the older can be inactivated but in the other cases
we have to merge both EoC/CT-combis. Hmm ... complicated
EoC/CT remains with deleted Patient, then we have to edit the target EoC manually and
recreate CT or we will loose the statusHistory info of source EoC and the CareTeam