refs #396 move Blackmisc Aviation classes into subfolder

src/blackmisc/aviation/aircraftenginelist.cpp

@@ -13,6 +13,7 @@ namespace BlackMisc
 {
     namespace Aviation
     {
+
         CAircraftEngineList::CAircraftEngineList(std::initializer_list<bool> enginesOnOff)
         {
             int no = 1; // engines 1 based
@@ -74,5 +75,6 @@ namespace BlackMisc
             qDBusRegisterMetaType<CAircraftEngineList>();
             registerMetaValueType<CAircraftEngineList>();
         }
+
     } // namespace
 } // namespace