refactor(srp): move universal shadow ownership into asset layer

- track missing render graph scriptcore sources and rendering utility headers

- expose camera request directional shadow control to managed universal asset configuration

managed/XCEngine.ScriptCore/Rendering/Core/CameraRenderRequestContext.cs

@@ -53,6 +53,18 @@ namespace XCEngine.Rendering
                         value);
         }
 
+        public bool hasDirectionalShadow =>
+            InternalCalls
+                .Rendering_CameraRenderRequestContext_GetHasDirectionalShadow(
+                    m_nativeHandle);
+
+        public void ClearDirectionalShadow()
+        {
+            InternalCalls
+                .Rendering_CameraRenderRequestContext_ClearDirectionalShadow(
+                    m_nativeHandle);
+        }
+
         internal ulong nativeHandle =>
             m_nativeHandle;
     }