Ref T259, Ref T243 pass the providers along the hierarchy

src/blackmisc/provider.h

@@ -37,6 +37,9 @@ namespace BlackMisc
         //! Has provider?
         bool hasProvider() const { return m_provider; }
 
+        //! Provider
+        PROVIDER *getProvider() const { return m_provider; }
+
         //! Set the provider
         //! \remark use individual names to disambiguate
         void setProvider(PROVIDER *provider)

src/blackmisc/simulation/remoteaircraftprovider.h

@@ -460,6 +460,9 @@ namespace BlackMisc
             //! Set remote aircraft provider
             void setRemoteAircraftProvider(IRemoteAircraftProvider *remoteAircraftProvider) { this->setProvider(remoteAircraftProvider); }
 
+            //! Get the aircraft provider
+            IRemoteAircraftProvider *getRemoteAircraftProvider() const { return this->getProvider(); }
+
         protected:
             //! Default constructor
             CRemoteAircraftAware() {}