Automatic merge of T1.5.1-870-ge0bf062eb and 18 pull requests

- Pull request #570 at 3539862: Experimental glTF 2.0 support with PBR lighting
- Pull request #839 at d00beb9: First phase of https://blueprints.launchpad.net/or/+spec/additional-cruise-control-parameters
- Pull request #876 at f92de76: docs: add source for documents previously on website to source Documentation folder
- Pull request #882 at 9c456aa: Blueprint/train car operations UI window
- Pull request #885 at 8f94333: feat: Add notifications to Menu
- Pull request #886 at 6c0785b: Scene viewer extension to TrackViewer
- Pull request #892 at 1f5ba4c: Signal Function OPP_SIG_ID_TRAINPATH
- Pull request #896 at 5866028: First implementation of https://blueprints.launchpad.net/or/+spec/specific-sounds-for-ai-trains
- Pull request #897 at 42f1dd9: feat: Improved system information collection
- Pull request #903 at 9bead33: Downloading route content (Github, zip)
- Pull request #907 at 9b0b04f: Bug fix for https://bugs.launchpad.net/or/+bug/2047300 Dynamic tracks disappear after long tunnel
- Pull request #911 at 6834af0: docs: Add refactoring as a special type of PR
- Pull request #912 at d595703: New Triple Valve Features Vol. 2
- Pull request #914 at 2ffadd6: Adjustments to Duplex steam
- Pull request #915 at 6d911d7: Correct calculation error with curve friction
- Pull request #917 at 3bbf66e: Lighting Configuration Enhancements
- Pull request #919 at 7aafe02: Added mouse wheel support for controls which can be moved by pressing t…
- Pull request #920 at a94e403: Update RailDriver in Manual

Author: openrails-bot

Source/RunActivity/Viewer3D/RollingStock/MSTSLocomotiveViewer.cs

@@ -2050,15 +2050,7 @@ public CabViewDiscreteRenderer(Viewer viewer, MSTSLocomotive locomotive, CVCWith
                 default:
                     ChangedValue = (value) =>
                     {
-                        if (UserInput.IsMouseLeftButtonDown)
-                        {
-                            return value + NormalizedMouseMovement();
-                        }
-                        else
-                        {
-                            // mousewheel
-                            return value + (float)UserInput.MouseWheelChange / 1500;
-                        }
+                        return value + NormalizedMouseMovement();
                     };
                     break;
             }
@@ -2375,8 +2367,8 @@ float NormalizedMouseMovement()
             {
                 // mousewheel
                 return (ControlDiscrete.Orientation > 0
-                    ? (float)UserInput.MouseWheelChange / (float)Control.Height
-                    : (float)UserInput.MouseWheelChange / (float)Control.Width)
+                    ? (float)UserInput.MouseWheelChange / (float)1500
+                    : (float)UserInput.MouseWheelChange / (float)1500)
                     * (ControlDiscrete.Direction > 0 ? -1 : 1);
             }
         }