feat: add structured binding test

chapters/chapter_02/src/structured_binding.cpp

@@ -0,0 +1,12 @@
+#include "structured_binding.h"
+#include <cstdint>
+#include <iostream>
+#include <tuple>
+
+std::tuple<const char *, uint32_t> func() { return {"32", 32}; }
+
+void StructuredBindingTest::run() {
+  const auto &[str, val] = func();
+
+  std::cout << "Bound values: " << str << " and " << val << std::endl;
+}