feat(rendering): add managed fullscreen stage recording seam

managed/XCEngine.ScriptCore/ScriptableRenderContext.cs

@@ -41,5 +41,14 @@ namespace XCEngine
                     m_nativeHandle,
                     (int)injectionPoint);
         }
+
+        public bool RecordBuiltinColorScaleFullscreenPass(
+            Vector4 colorScale)
+        {
+            return InternalCalls
+                .Rendering_ScriptableRenderContext_RecordBuiltinColorScaleFullscreenPass(
+                    m_nativeHandle,
+                    ref colorScale);
+        }
     }
 }