Use this class to find objects type attributes on stems
Sample call
GrouperObjectTypesAttributeValue attributeValue = new GdgTypeStemFinder().assignStem(stem).assignType("ref").findGdgTypeStemAssignment();
Sample call to find multiple object types attributes on a stem
Set<GrouperObjectTypesAttributeValue> attributeValues = new GdgTypeStemFinder().assignStem(stem).findGdgTypeStemAssignments();