feat(srp): add descriptor-driven object draw authoring

- bridge renderer list descriptors into ScriptableRenderContext scene draw calls
- reuse DrawObjectsPass across Universal and project custom renderers
- add RenderObjectsRendererFeature for package-level object draw extension

engine/src/Rendering/Pipelines/Internal/BuiltinForwardPipelineSurface.cpp

@@ -606,7 +606,10 @@ bool BuiltinForwardPipeline::DrawVisibleItems(
         }
     };
 
-    VisitRendererListVisibleItems(sceneData, drawSettings.rendererListType, drawVisibleItem);
+    VisitRendererListVisibleItems(
+        sceneData,
+        drawSettings.rendererListDesc,
+        drawVisibleItem);
     return !drawFailed;
 }