Debug option to disable stereo paths

ScriptableRenderPipeline/HDRenderPipeline/Debug/DebugDisplay.cs

             DebugMenuManager.instance.AddDebugItem<bool>("Rendering", "Enable Atmospheric Scattering",() => renderingDebugSettings.enableAtmosphericScattering, (value) => renderingDebugSettings.enableAtmosphericScattering = (bool)value);
             DebugMenuManager.instance.AddDebugItem<bool>("Rendering", "Enable Distortion",() => renderingDebugSettings.enableDistortion, (value) => renderingDebugSettings.enableDistortion = (bool)value);
             DebugMenuManager.instance.AddDebugItem<bool>("Rendering", "Enable Subsurface Scattering",() => renderingDebugSettings.enableSSSAndTransmission, (value) => renderingDebugSettings.enableSSSAndTransmission = (bool)value);
+            DebugMenuManager.instance.AddDebugItem<bool>("Rendering", "Enable Stereo Rendering",() => renderingDebugSettings.allowStereo, (value) => renderingDebugSettings.allowStereo = (bool)value);
             DebugMenuManager.instance.AddDebugItem<int>("Rendering", kFullScreenDebugMode, () => (int)fullScreenDebugMode, (value) => fullScreenDebugMode = (FullScreenDebugMode)value, DebugItemFlag.None, new DebugItemHandlerIntEnum(DebugDisplaySettings.renderingFullScreenDebugStrings, DebugDisplaySettings.renderingFullScreenDebugValues));
         }
 
         public bool enableGaussianPyramid = true;
         public bool enableSSSAndTransmission = true;
         public bool enableAtmosphericScattering = true;
+        public bool allowStereo = true;
     }
 
     public enum ShadowMapDebugMode

ScriptableRenderPipeline/HDRenderPipeline/HDRenderPipeline.cs

                 m_FrameCount = Time.frameCount;
             }
 
+            var stereoEnabled = UnityEngine.XR.XRSettings.isDeviceActive && m_CurrentDebugDisplaySettings.renderingDebugSettings.enableStereoRendering;
+
             foreach (var camera in cameras)
             {
             // This is the main command buffer used for the frame.