Automatic merge of T1.5.1-1783-g77a649f09 and 14 pull requests

- Pull request #570 at 362e4e7: glTF 2.0 support with PBR lighting
- Pull request #1062 at bbc0013: Train Forces popup Window.
- Pull request #1064 at cb510d6: Add Train Info tab to Help window (F1)
- Pull request #1066 at 62c89c1: Log derailment, using TraceInformation.
- Pull request #1082 at 5845a1a: Allow variable water level in glass gauge
- Pull request #892 at 1f5ba4c: Signal Function OPP_SIG_ID_TRAINPATH
- Pull request #1057 at 84592f7: Switchable brake system
- Pull request #1070 at f818e40: Fix a NullReferenceException in TCS scripts
- Pull request #1074 at e9a66c1: Gradient - commit 2024-16-12
- Pull request #1076 at 3bbd537: Allow depart early
- Pull request #1078 at 9ab642e: Default PowerSupply script for steam locomotives
- Pull request #1079 at 5e37059: Adds Polish transations
- Pull request #1083 at 7e6fb60: Menu contents route name clash
- Pull request #1081 at 689494b: Brake cuts power unification

Author: openrails-bot

Source/Orts.Simulation/Simulation/RollingStocks/MSTSSteamLocomotive.cs

@@ -7138,7 +7138,7 @@ private void UpdateWaterGauge()
                 float glasslevelM = 0;
 
                 // Calculate water level on level gradient
-                var referenceLevelFraction = (BoilerCrownCoverageHeightM + BoilerCrownHeightM + BoilerDiameterM / 2.0f)/BoilerDiameterM;
+                var referenceLevelFraction = (BoilerCrownCoverageHeightM + BoilerCrownHeightM + (BoilerDiameterM / 2.0f))/BoilerDiameterM;
 
                 // Convert reference point to reading on glass
                 if (WaterFraction > referenceLevelFraction)
@@ -7148,7 +7148,7 @@ private void UpdateWaterGauge()
                 }
                 else if (WaterFraction < referenceLevelFraction)
                 {
-                    glasslevelfraction = -1.0f  * referenceLevelFraction - WaterFraction;
+                    glasslevelfraction = -1.0f  * (referenceLevelFraction - WaterFraction);
                 }
 
                 glasslevelM = glasslevelfraction * BoilerDiameterM;
@@ -7158,9 +7158,7 @@ private void UpdateWaterGauge()
 
                 GradientBoilerLevelPercent = totalglassLevelM * 100;
 
-                //             Trace.TraceInformation("Gradient - Current {0} BoilAng {1} GlassIN {2} Glass% {3}", CurrentElevationPercent, boilerangleRad, glasslevelIN,  GradientBoilerLevelPercent);
-
-          //      Trace.TraceInformation("Boiler - refLevel {0} GlassLevel {1} GlassLevelM {2} GradientLevel {3} TotalLevel {4} % {5}", referenceLevelFraction, glasslevelfraction, glasslevelM, glassLevelGradientM, totalglassLevelM, GradientBoilerLevelPercent);
+            //    Trace.TraceInformation("Boiler - refLevel {0} GlassLevel {1} GlassLevelM {2} GradientLevel {3} TotalLevel {4} % {5} WaterFraction {6}", referenceLevelFraction, glasslevelfraction, glasslevelM, glassLevelGradientM, totalglassLevelM, GradientBoilerLevelPercent, WaterFraction);
 
             }