allow printing set of unsigned integers in cli

alib2common/src/PrimitiveRegistrator.cpp

@@ -56,6 +56,7 @@ public:
 		abstraction::ValuePrinterRegistry::registerValuePrinter < object::Object > ( );
 		abstraction::ValuePrinterRegistry::registerValuePrinter < ext::set < object::Object > > ( );
+		abstraction::ValuePrinterRegistry::registerValuePrinter < ext::set < unsigned > > ( );
 		abstraction::ContainerRegistry::registerSet < object::Object > ( );
 	}
 };