Automatic merge of T1.6-rc7-43-ge3d1d75f9 and 15 pull requests

- Pull request #1086 at e10390b: Add Settings Exporter tool (copy settings to INI, etc)
- Pull request #1091 at 2e06f85: Automatic speed control
- Pull request #1104 at ccc5c4d: Handle simple adhesion within the axle module
- Pull request #1115 at 270f22f: Do not activate ETS switch if no suitable cars are attached
- Pull request #1120 at ba3c47f: Automatically Calculate Friction Values if Missing
- Pull request #1121 at 91d2d26: Manually Override Articulation
- Pull request #1130 at 8ae6bb7: Fix F9 points to an incorrect car ID.
- Pull request #1143 at 84f72b8: Status in Work Orders popup set too fast
- Pull request #1151 at 5e59187: fix: Do not allow non-ACE/DDS textures in content
- Pull request #1152 at 66dfd09: fix: Clean up multiple issues with data logger
- Pull request #1153 at d2f2a02: Fix TrItems in track viewer (events were over-writing mileposts)
- Pull request #1082 at 5845a1a: Allow variable water level in glass gauge
- Pull request #1081 at 689494b: Brake cuts power unification
- Pull request #1124 at fab5457: Built-in PBL2 brake controller
- Pull request #1128 at 1d7643d: Particle Emitter Overhaul

Author: openrails-bot

Source/Orts.Simulation/Simulation/RollingStocks/MSTSLocomotive.cs

@@ -3514,6 +3514,17 @@ public virtual void UpdateFrictionCoefficient(float elapsedClockSeconds)
                     axle.CurtiusKnifflerZeroSpeed = ZeroBaseuMax;
                 }
             }
+            else
+            {
+                foreach (var axle in LocomotiveAxles)
+                {
+                    if (axle.AdhesionLimit == 0)
+                    {
+                        axle.AdhesionLimit = BaseFrictionCoefficientFactor * AdhesionMultiplier;
+                        axle.CurtiusKnifflerZeroSpeed = ZeroBaseuMax;
+                    }
+                }
+            }
 
            // Set adhesion conditions for other steam locomotives
             if (EngineType == EngineTypes.Steam && SteamEngineType != MSTSSteamLocomotive.SteamEngineTypes.Geared)  // ToDo explore adhesion factors