Support for (de)serializing config values (#1571)

Summary:
Pull Request resolved: https://github.com/facebook/yoga/pull/1571

X-link: https://github.com/facebook/react-native/pull/42750

tsia. This is state we need to capture as it can drastically affect the benchmark times

Reviewed By: NickGerleman

Differential Revision: D53203385

fbshipit-source-id: 47178458d039df90fb15d8a420f9e0f17e4fe6ca

benchmark/Benchmark.h

@@ -8,10 +8,20 @@
 #pragma once
 
 #include <chrono>
+#include <memory>
 #include <string>
+#include <vector>
+
+#include <yoga/Yoga.h>
 
 namespace facebook::yoga {
 
+struct YogaNodeAndConfig {
+  std::shared_ptr<YGNode> node_;
+  std::shared_ptr<YGConfig> config_;
+  std::vector<YogaNodeAndConfig> children_;
+};
+
 struct BenchmarkResult {
   std::chrono::steady_clock::duration treeCreationDuration;
   std::chrono::steady_clock::duration layoutDuration;