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/Attribute.hpp

@@ -0,0 +1,136 @@
+#ifndef RFL_ATTRIBUTE_HPP_
+#define RFL_ATTRIBUTE_HPP_
+
+#include <algorithm>
+#include <string_view>
+#include <tuple>
+#include <type_traits>
+#include <utility>
+
+#include "Literal.hpp"
+#include "default.hpp"
+
+namespace rfl {
+
+template <class T>
+struct Attribute {
+  using Type = T;
+  using ReflectionType = T;
+
+  Attribute() : value_(Type()) {}
+
+  Attribute(const Type& _value) : value_(_value) {}
+
+  Attribute(Type&& _value) noexcept : value_(std::move(_value)) {}
+
+  Attribute(Attribute<T>&& _attr) noexcept = default;
+
+  Attribute(const Attribute<Type>& _attr) = default;
+
+  template <class U>
+  Attribute(const Attribute<U>& _attr) : value_(_attr.get()) {}
+
+  template <class U>
+  Attribute(Attribute<U>&& _attr) : value_(_attr.get()) {}
+
+  template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
+                                             bool>::type = true>
+  Attribute(const U& _value) : value_(_value) {}
+
+  template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
+                                             bool>::type = true>
+  Attribute(U&& _value) noexcept : value_(std::forward<U>(_value)) {}
+
+  template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
+                                             bool>::type = true>
+  Attribute(const Attribute<U>& _attr) : value_(_attr.value()) {}
+
+  /// Assigns the underlying object to its default value.
+  template <class U = Type,
+            typename std::enable_if<std::is_default_constructible_v<U>,
+                                    bool>::type = true>
+  Attribute(const Default&) : value_(Type()) {}
+
+  ~Attribute() = default;
+
+  /// Returns the underlying object.
+  const Type& get() const { return value_; }
+
+  /// Returns the underlying object.
+  Type& operator()() { return value_; }
+
+  /// Returns the underlying object.
+  const Type& operator()() const { return value_; }
+
+  /// Assigns the underlying object.
+  auto& operator=(const Type& _value) {
+    value_ = _value;
+    return *this;
+  }
+
+  /// Assigns the underlying object.
+  auto& operator=(Type&& _value) noexcept {
+    value_ = std::move(_value);
+    return *this;
+  }
+
+  /// Assigns the underlying object.
+  template <class U, typename std::enable_if<std::is_convertible_v<U, Type>,
+                                             bool>::type = true>
+  auto& operator=(const U& _value) {
+    value_ = _value;
+    return *this;
+  }
+
+  /// Assigns the underlying object to its default value.
+  template <class U = Type,
+            typename std::enable_if<std::is_default_constructible_v<U>,
+                                    bool>::type = true>
+  auto& operator=(const Default&) {
+    value_ = Type();
+    return *this;
+  }
+
+  /// Assigns the underlying object.
+  Attribute<T>& operator=(const Attribute<T>& _attr) = default;
+
+  /// Assigns the underlying object.
+  Attribute<T>& operator=(Attribute<T>&& _attr) = default;
+
+  /// Assigns the underlying object.
+  template <class U>
+  auto& operator=(const Attribute<U>& _attr) {
+    value_ = _attr.get();
+    return *this;
+  }
+
+  /// Assigns the underlying object.
+  template <class U>
+  auto& operator=(Attribute<U>&& _attr) {
+    value_ = std::forward<T>(_attr.value_);
+    return *this;
+  }
+
+  /// We want all parsers other than the XML parser to treat attributes like
+  /// normal fields, so we just implement the reflection interface.
+  const ReflectionType& reflection() const { return value_; }
+
+  /// Assigns the underlying object.
+  void set(const Type& _value) { value_ = _value; }
+
+  /// Assigns the underlying object.
+  void set(Type&& _value) { value_ = std::move(_value); }
+
+  /// Returns the underlying object.
+  Type& value() { return value_; }
+
+  /// Returns the underlying object.
+  const Type& value() const { return value_; }
+
+  /// The underlying value.
+  Type value_;
+};
+
+}  // namespace rfl
+
+#endif