feat(srp): add drawing settings override material seam

- add a managed DrawingSettings seam for scene draw authoring
- let builtin forward scene draws use an override material when provided
- wire DrawObjectsPass and RenderObjectsRendererFeature through the new settings

managed/GameScripts/ScriptableRenderContextApiSurfaceProbe.cs

@@ -13,6 +13,7 @@ namespace Gameplay
         public bool HasPublicContextRecordSceneInjectionPoint;
         public bool HasPublicContextDrawRenderersByType;
         public bool HasPublicContextDrawRenderersByDesc;
+        public bool HasPublicContextDrawRenderersByDescAndSettings;
         public bool HasPublicContextDrawOpaqueRenderers;
         public bool HasPublicContextDrawTransparentRenderers;
         public bool HasPublicContextRecordOpaqueScenePhase;
@@ -66,6 +67,7 @@ namespace Gameplay
         public bool HasSceneRenderPhaseType;
         public bool HasSceneRenderInjectionPointType;
         public bool HasRendererListType;
+        public bool HasDrawingSettingsType;
         public bool HasRenderQueueRangeType;
         public bool HasRendererSortModeType;
         public bool HasFilteringSettingsType;
@@ -135,6 +137,18 @@ namespace Gameplay
                         typeof(RendererListDesc)
                     },
                     null) != null;
+            HasPublicContextDrawRenderersByDescAndSettings =
+                contextType.GetMethod(
+                    "DrawRenderers",
+                    PublicInstanceMethodFlags,
+                    null,
+                    new System.Type[]
+                    {
+                        typeof(SceneRenderPhase),
+                        typeof(RendererListDesc),
+                        typeof(DrawingSettings)
+                    },
+                    null) != null;
             HasPublicContextDrawOpaqueRenderers =
                 contextType.GetMethod(
                     "DrawOpaqueRenderers",
@@ -353,6 +367,9 @@ namespace Gameplay
             HasRendererListType =
                 contextType.Assembly.GetType(
                     "XCEngine.Rendering.RendererListType") != null;
+            HasDrawingSettingsType =
+                contextType.Assembly.GetType(
+                    "XCEngine.Rendering.DrawingSettings") != null;
             HasRenderQueueRangeType =
                 contextType.Assembly.GetType(
                     "XCEngine.Rendering.RenderQueueRange") != null;