refs #748, further airport from DB follow up fixes

* Ignore mode, not all applications need to load everything (mapping tool no airports)
* removed signal in airport reader which is already in base class
* added "virtual" keyword
* fixed another syncronize typo
* added allDbEntiiesUsed() to also reflect the config (ignore flag)
* ensure allSwiftDbData are signaled correctly even with ignore flag

src/blackcore/db/databasereaderconfig.h

@@ -32,7 +32,7 @@ namespace BlackCore
 {
     namespace Db
     {
-        //! Details how to read
+        //! Details how to read a certain entity
         class BLACKCORE_EXPORT CDatabaseReaderConfig : public BlackMisc::CValueObject<CDatabaseReaderConfig>
         {
         public:
@@ -62,6 +62,9 @@ namespace BlackCore
             //! Will read from swift DB
             bool possiblyReadsFromSwiftDb() const;
 
+            //! Will read from cache
+            bool possiblyReadsFromCache() const;
+
             //! Fully initialized
             bool isValid() const;
 
@@ -103,6 +106,9 @@ namespace BlackCore
             //! Will read from swift DB
             bool possiblyReadsFromSwiftDb() const;
 
+            //! Entities which will use cache or DB, so no canceled or ignored ones
+            BlackMisc::Network::CEntityFlags::Entity getEntitesCachedOrReadFromDB() const;
+
             //! Init for mapping tool
             static CDatabaseReaderConfigList forMappingTool();