feat(reflect-cpp): Switched from glaze -> reflect cpp

A bug was discovered in glaze which prevented valid toml output. We have
switched to toml++ and reflect-cpp. The interface has remained the same
so this should not break any code

build-config/reflect-cpp/include/rfl/internal/nth_element_t.hpp

@@ -0,0 +1,29 @@
+#ifndef RFL_INTERNAL_NTH_ELEMENT_T_HPP_
+#define RFL_INTERNAL_NTH_ELEMENT_T_HPP_
+
+#include "nth_element.hpp"
+
+namespace rfl::internal {
+
+#if defined(__clang__)
+
+template <int N, class... Ts>
+using nth_element_t = __type_pack_element<N, Ts...>;
+
+#else
+
+template <class T>
+struct TypeWrapper {
+  using Type = T;
+};
+
+template <int N, class... Ts>
+using nth_element_t =
+    typename std::invoke_result_t<decltype(nth_element<N, TypeWrapper<Ts>...>),
+                                  TypeWrapper<Ts>...>::Type;
+
+#endif
+
+}  // namespace rfl::internal
+
+#endif