Automatic merge of T1.5.1-799-gb02a6e5d3 and 15 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 b554363: 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 #899 at a0a37ac: Duplex steam engines - Booster Engine addition
- Pull request #903 at 0d6d045: 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 #908 at 4b4afe3: feat: supports switching adhesion precisions
- Pull request #911 at 6834af0: docs: Add refactoring as a special type of PR
- Pull request #912 at 9a12fbe: New Triple Valve Features Vol. 2

Author: openrails-bot

Source/Documentation/Manual/physics.rst

@@ -3106,6 +3106,7 @@ MaxAuxilaryChargingRate and EmergencyResChargingRate.
    single: ORTSEmergencyValveActuationRate
    single: ORTSEmergencyDumpValveRate
    single: ORTSEmergencyDumpValveTimer
+   single: ORTSEmergencyQuickAction
    single: ORTSEmergencyResQuickRelease
    single: ORTSMainResPipeAuxResCharging
    single: ORTSBrakeRelayValveRatio
@@ -3114,8 +3115,15 @@ MaxAuxilaryChargingRate and EmergencyResChargingRate.
    single: ORTSBrakeRelayValveReleaseRate
    single: ORTSMaxTripleValveCylinderPressure
    single: ORTSMaxServiceCylinderPressure
+   single: ORTSMaxServiceApplicationRate
+   single: ORTSTwoStageLowPressure
+   single: ORTSTwoStageIncreasingSpeed
+   single: ORTSTwoStageDecreasingSpeed
+   single: ORTSHighSpeedReducingPressure
    single: ORTSUniformChargingThreshold
    single: ORTSUniformChargingRatio
+   single: ORTSUniformReleaseThreshold
+   single: ORTSUniformReleaseRatio
    single: ORTSQuickServiceLimit
    single: ORTSQuickServiceApplicationRate
    single: ORTSQuickServiceVentRate
@@ -3159,9 +3167,12 @@ MaxAuxilaryChargingRate and EmergencyResChargingRate.
 - ``Wagon(ORTSEmergencyDumpValveTimer`` -- Timer for emergency dump valve to close
   after it is activated. If set to 0, it will close as soon as BP is discharged.
   Default value will prevent BP from being charged for 2 minutes.
+- ``Wagon(ORTSEmergencyQuickAction`` -- If set to 1, air from the brake pipe will
+  be sent to the brake cylinder at MaxApplicationRate during emergency applications.
+  Speeds up emergency application along the entire train. (default 0)
 - ``Wagon(ORTSEmergencyResQuickRelease`` -- Set to 1 (default 0) to enable quick release,
   in which emergency reservoir air is used to increase the brake pipe pressure
-  during release. Remains active until brake cylinder pressure drops below 5 psi.
+  during release. Remains active until aux res has recharged.
 - ``Wagon(ORTSMainResPipeAuxResCharging`` -- Boolean value that indicates,
   for twin pipe systems, if the main reservoir pipe is used for charging the auxiliary
   reservoirs. If set to false, the main reservoir pipe will not be used
@@ -3185,12 +3196,32 @@ MaxAuxilaryChargingRate and EmergencyResChargingRate.
 - ``Wagon(ORTSMaxServiceCylinderPressure`` -- Sets the maximum cylinder pressure
   demanded during service applications. During emergency applications,
   brake cylinder pressure is instead limited by ``ORTSMaxTripleValveCylinderPressure``.
+- ``Wagon(ORTSMaxServiceApplicationRate`` -- Sets the maximum application rate
+  allowed during service applications. For emergency applications, the application
+  rate will be limited by ``MaxApplicationRate``.
+- ``Wagon(ORTSTwoStageLowPressure`` -- For two stage braking systems where brake force
+  is reduced at lower speeds and increased at higher speeds, sets the maximum cylinder
+  pressure demanded when at slower speeds (defaults to 0, disabling two stage braking).
+  For high speed, use ``ORTSMaxTripleValveCylinderPressure`` to set the pressure limit.
+- ``Wagon(ORTSTwoStageIncreasingSpeed`` -- The speed at which the two stage braking
+  system changes from low pressure to high pressure during acceleration.
+- ``Wagon(ORTSTwoStageDecreasingSpeed`` -- The speed at which the two stage braking
+  system changes from high pressure to low pressure during deceleration.
+- ``Wagon(ORTSHighSpeedReducingPressure`` -- If the demanded brake cylinder pressure
+  exceeds this value, the brakes will gradually release to this pressure. Simulates
+  the high speed reducing valve (HSRV). (default 0 for wagons with no HSRV)
 - ``Wagon(ORTSUniformChargingThreshold`` -- The pressure difference between the brake
   pipe and auxiliary reservoir at which uniform charging activates during release
   (default 3 psi), usually used to reduce the rate of auxiliary reservoir charging.
 - ``Wagon(ORTSUniformChargingRatio`` -- Factor used to divide auxiliary reservoir
   charging rate by when uniform charging is active. Eg: setting of 2 will halve
   charging rate while uniform charging is active (defaults to 0, disabling the feature).
+- ``Wagon(ORTSUniformReleaseThreshold`` -- The pressure difference between the brake
+  pipe and auxiliary reservoir at which uniform release activates during release
+  (default 3 psi), usually used to reduce the rate of brake cylinder release.
+- ``Wagon(ORTSUniformReleaseRatio`` -- Factor used to divide brake cylinder
+  release rate by when uniform release is active. Eg: setting of 2 will halve
+  release rate while uniform release is active (defaults to 0, disabling the feature).
 - ``Wagon(ORTSQuickServiceLimit`` -- Quick service activates when triple valve
   initially changes from release to apply, and will remain active until brake
   cylinder pressure reaches the pressure specified here (default 0,