refactor(srp): move urp shadow execution bridge into managed

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

@@ -21,6 +21,13 @@ namespace XCEngine.Rendering
             ConfigureCameraFramePlan(context);
         }
 
+        internal bool ConfigureDirectionalShadowExecutionStateInstance(
+            DirectionalShadowExecutionContext context)
+        {
+            return ConfigureDirectionalShadowExecutionState(
+                context);
+        }
+
         internal int GetRuntimeResourceVersionInstance()
         {
             SynchronizeRuntimeResourceVersion();
@@ -42,6 +49,12 @@ namespace XCEngine.Rendering
         {
         }
 
+        protected virtual bool ConfigureDirectionalShadowExecutionState(
+            DirectionalShadowExecutionContext context)
+        {
+            return false;
+        }
+
         protected virtual FinalColorSettings GetDefaultFinalColorSettings()
         {
             return FinalColorSettings.CreateDefault();