Add aklvents button

Train.h

@@ -773,6 +773,7 @@ public: // reszta może by?publiczna
     TButton btLampkaRearLeftEndLight;
     TButton btLampkaRearRightEndLight;
 	TButton btCabActived;
+	TButton btAKLVents;
 	TButton btCompressors;  // lampka pracy jakiejkolwiek sprezarki
     // other
     TButton btLampkaMalfunction;