fix: processing out of range aircraft

flights which are out of range in Euroscope are being simulated by Euroscope and updates are still triggered. We skip these updates to prevent updating the backend with irrelevant aircraft.

src/core/DataManager.cpp

@@ -347,8 +347,11 @@ void DataManager::setActiveAirports(const std::list<std::string> activeAirports)
 }
 
 void DataManager::queueFlightplanUpdate(EuroScopePlugIn::CFlightPlan flightplan) {
+    // skip the update if:
+    // - the flightplan or its data is invalid
+    // - or the aircraft is out of range therefore GetSimulated() is true
     if (false == flightplan.IsValid() || nullptr == flightplan.GetFlightPlanData().GetPlanType() ||
-        nullptr == flightplan.GetFlightPlanData().GetOrigin())
+        nullptr == flightplan.GetFlightPlanData().GetOrigin() || flightplan.GetSimulated())
         return;
 
     auto pilot = this->CFlightPlanToPilot(flightplan);