Fix resume problem with brake cyl

Author: cesarBLG

Source/Orts.Simulation/Simulation/RollingStocks/SubSystems/Brakes/MSTS/AirSinglePipe.cs

@@ -245,6 +245,7 @@ public override void Save(BinaryWriter outf)
             outf.Write(ReleaseRatePSIpS);
             outf.Write(RetainerPressureThresholdPSI);
             outf.Write(AutoCylPressurePSI);
+            outf.Write(CylPressurePSI);
             outf.Write(AuxResPressurePSI);
             outf.Write(EmergResPressurePSI);
             outf.Write(ControlResPressurePSI);
@@ -267,6 +268,7 @@ public override void Restore(BinaryReader inf)
             ReleaseRatePSIpS = inf.ReadSingle();
             RetainerPressureThresholdPSI = inf.ReadSingle();
             AutoCylPressurePSI = inf.ReadSingle();
+            CylPressurePSI = inf.ReadSingle();
             AuxResPressurePSI = inf.ReadSingle();
             EmergResPressurePSI = inf.ReadSingle();
             ControlResPressurePSI = inf.ReadSingle();