refactor(srp): add camera depth prepass planning bridge

engine/src/Rendering/Execution/CameraFramePlan.cpp

@@ -49,6 +49,14 @@ RenderSurface CameraFramePlan::BuildGraphManagedIntermediateSurfaceTemplate(
     return graphManagedSurface;
 }
 
+RenderSurface CameraFramePlan::BuildCameraDepthOnlySurfaceTemplate(
+    const RenderSurface& surface) {
+    RenderSurface depthOnlySurface = surface;
+    depthOnlySurface.SetColorAttachments({});
+    depthOnlySurface.ClearClearColorOverride();
+    return depthOnlySurface;
+}
+
 CameraFramePlan CameraFramePlan::FromRequest(const CameraRenderRequest& request) {
     CameraFramePlan plan = {};
     plan.request = request;