Ref T241, Ref T243, ITimestampWithOffsetObjectList

* there was already ITimestampWithOffsetBased for objects
* this creates the container version
* functions to add objects (parts/situations) and guarantee the sort order
* moved push_frontMaxElements to CSequence (not specific for timestamp lists)
* added in-place reverse

src/blackmisc/aviation/aircraftpartslist.cpp

@@ -25,6 +25,5 @@ namespace BlackMisc
         CAircraftPartsList::CAircraftPartsList(std::initializer_list<CAircraftParts> il) :
             CSequence<CAircraftParts>(il)
         { }
-
     } // namespace
 } // namespace