added definition for credit_item_ref objects
added definition for credit_item_ref objects

senseijack/retailops-sdk,senseijack/retailops-sdk,gudTECH/retailops-sdk,gudTECH/retailops-sdk,senseijack/retailops-sdk,gudTECH/retailops-sdk,gudTECH/retailops-sdk,senseijack/retailops-sdk