feat(scripting): add managed srp base api

managed/XCEngine.ScriptCore/ScriptableRenderPipeline.cs

@@ -0,0 +1,21 @@
+namespace XCEngine
+{
+    public abstract class ScriptableRenderPipeline : Object
+    {
+        protected ScriptableRenderPipeline()
+        {
+        }
+
+        protected internal virtual bool SupportsStageRenderGraph(
+            CameraFrameStage stage)
+        {
+            return false;
+        }
+
+        protected internal virtual bool RecordStageRenderGraph(
+            CameraFrameStage stage)
+        {
+            return false;
+        }
+    }
+}