feat: add examples

examples/reflect/reflect.cpp

@@ -0,0 +1,38 @@
+#include <iostream>
+
+#include <reflect>
+#include "reflect.hpp"
+
+struct Hoge
+{
+    int foo;
+    double bar;
+    std::string baz;
+};
+TOML11_REFLECT(Hoge)
+
+int main()
+{
+    toml::value v(toml::table{
+            {"foo", 42},
+            {"bar", 3.14},
+            {"baz", "fuga"},
+        });
+
+    const Hoge h = toml::get<Hoge>(v);
+
+    std::cout << "Hoge.foo = " << h.foo << std::endl;
+    std::cout << "Hoge.bar = " << h.bar << std::endl;
+    std::cout << "Hoge.baz = " << h.baz << std::endl;
+
+    Hoge h2;
+    h2.foo = 6 * 9;
+    h2.bar = 2.718;
+    h2.baz = "piyo";
+
+    toml::value v2(h2);
+
+    std::cout << toml::format(v2);
+
+    return 0;
+}