refs #391, allow to send aircraft parts from GUI

* GUI component for aircraft parts
* remote aircraft selector component
* Adjusted GUI for internals component
* Enable / disable debug messages from GUI
* Allow to init engines directly
* Removed unused async sort in sequence

In same step fixed found issues in interpolator
* allow to set max rendered aircraft

src/plugins/simulator/fsx/simulator_fsx.cpp

@@ -660,7 +660,7 @@ namespace BlackSimPlugin
                 if (interpolatorStatus.interpolationSucceeded)
                 {
                     // aircraft parts
-                    // inside interpolator if, as no parts can be sent without position
+                    // inside "interpolator if", as no parts can be sent without position
                     updateRemoteAircraftParts(simObj, parts, partsStatus, interpolatedSituation, isOnGround); // update and retrieve parts in the same step
                 }
 

src/plugins/simulator/fsx/simulator_fsx.h

@@ -191,7 +191,6 @@ namespace BlackSimPlugin
             HANDLE  m_hSimConnect = nullptr;    //!< Handle to SimConnect object
             uint    m_nextObjID   = 1;          //!< object ID TODO: also used as request id, where to we place other request ids as for facilities
             BlackMisc::PhysicalQuantities::CTime m_syncTimeOffset;   //!< Time offset (if synchronized)
-            BlackCore::IInterpolator *m_interpolator = nullptr;      //!< interpolator instance
             QHash<BlackMisc::Aviation::CCallsign, CSimConnectObject> m_simConnectObjects;
             QFutureWatcher<bool> m_watcherConnect;