feat(srp): add render layer filtering to scene draw

- carry MeshRenderer renderLayer through scene extraction into VisibleRenderItem
- extend native and managed FilteringSettings with renderLayerMask support
- let RenderObjectsRendererFeature author layer-filtered object draws

engine/src/Rendering/Extraction/RenderSceneUtility.cpp

@@ -116,6 +116,7 @@ void AppendRenderItemsForGameObject(
             visibleItem.renderObjectId = renderObjectId;
             visibleItem.sectionIndex = static_cast<Core::uint32>(sectionIndex);
             visibleItem.hasSection = true;
+            visibleItem.renderLayer = meshRenderer->GetRenderLayer();
             visibleItem.material = ResolveMaterial(meshRenderer, mesh, section.materialID);
             visibleItem.renderQueue = ResolveMaterialRenderQueue(visibleItem.material);
             visibleItem.cameraDistanceSq = cameraDistanceSq;
@@ -134,6 +135,7 @@ void AppendRenderItemsForGameObject(
     visibleItem.materialIndex = 0;
     visibleItem.sectionIndex = 0;
     visibleItem.hasSection = false;
+    visibleItem.renderLayer = meshRenderer->GetRenderLayer();
     visibleItem.material = ResolveMaterial(meshRenderer, mesh, 0);
     visibleItem.renderQueue = ResolveMaterialRenderQueue(visibleItem.material);
     visibleItem.cameraDistanceSq = cameraDistanceSq;

engine/src/Scripting/Mono/MonoScriptRuntime.cpp

@@ -932,9 +932,9 @@ static_assert(
 struct ManagedFilteringSettingsData {
     int32_t renderQueueMin = std::numeric_limits<int32_t>::lowest();
     int32_t renderQueueMax = std::numeric_limits<int32_t>::max();
+    uint32_t renderLayerMask = std::numeric_limits<uint32_t>::max();
     uint8_t requireShadowCasting = 0u;
     uint8_t requireRenderObjectId = 0u;
-    uint8_t padding[2] = {};
 };
 
 static_assert(