refactor(srp): add asset runtime invalidation seam

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

@@ -4,6 +4,8 @@ namespace XCEngine.Rendering
 {
     public abstract class ScriptableRenderPipelineAsset : RenderPipelineAsset
     {
+        private int m_runtimeResourceVersion = 1;
+
         protected ScriptableRenderPipelineAsset()
         {
         }
@@ -19,6 +21,11 @@ namespace XCEngine.Rendering
             ConfigureCameraFramePlan(context);
         }
 
+        internal int GetRuntimeResourceVersionInstance()
+        {
+            return m_runtimeResourceVersion;
+        }
+
         protected virtual ScriptableRenderPipeline CreatePipeline()
         {
             return null;
@@ -47,6 +54,21 @@ namespace XCEngine.Rendering
         protected virtual void ReleaseRuntimeResources()
         {
         }
+
+        protected void SetDirty()
+        {
+            ReleaseRuntimeResources();
+
+            unchecked
+            {
+                ++m_runtimeResourceVersion;
+            }
+
+            if (m_runtimeResourceVersion <= 0)
+            {
+                m_runtimeResourceVersion = 1;
+            }
+        }
     }
 }