added returns test #22067
added returns test #22067
added returns test #22067
issue #22067: functions for returns
issue #22067: return orms
issue #22067: most of return line orm
issue #22067: add item and site to return line by extending derived methods to toOne joins
issue #22067: create model and strip out characteristics
issue #22067: start on cmiteminfo view
issue #22067: create return line view
issue #22067: moved shared invoice code into mixin
issue #22067: generalize billed attribute
issue #22067: create order line mixin
issue #22067: sales order base is now just mixins
issue #22067: share line validation
issue #22067: return crud passes
issue #22067: add obj_uuid to public cmitem table
issue #22067: progress on return additionaltests
issue #22067: return model tests pass
issue #22067: don't use obsolete function