refs #325, added async update member function to CListModelBase / CViewBase (+ resize modes)

* model:
** required a non templated base class for Q_OBJECT / slots
** added worker for thread, QConcurrent is not used as it does not work with template classes
* views:
** added cpp file for view base class
** added template parameter for container in views
** different modes how resizing will be applied

src/blackgui/views/atcstationview.h

@@ -21,7 +21,7 @@ namespace BlackGui
     namespace Views
     {
         //! ATC stations view
-        class CAtcStationView : public CViewBase<Models::CAtcStationListModel>
+        class CAtcStationView : public CViewBase<Models::CAtcStationListModel, BlackMisc::Aviation::CAtcStationList>
         {
             Q_OBJECT