By Dietrich Knauth and Tom Hals (Reuters) -The judge overseeing Purdue Pharma’s bankruptcy on Wednesday approved a $6 billion opioid settlement funded by its Sackler family owners, overruling objections from the Department of Justice and 20 states that opposed the deal. Under the settlement, the Sacklers would pay between $5.5 billion and $6 billion to a trust that will be used to pay the claims of states, victims of addiction, hospitals and others who have argued that the Purdue painkiller OxyContin played a central role in the U.S. opioid epidemic. The revised settlement must still be writte…