Function tuple_test

examples/include/imgui_app.cpp:1201–1344

======================================== std::tuple ========================================

// std::tuple
// ========================================
static void tuple_test() {
	ImGui::SeparatorText("std::tuple Test");
	ImGui::PushID("tuple_test");
	ImGui::Indent();
	static std::tuple<int, float, std::string> my_tuple = { 42, 3.14f, "Hello" };
	ImGui::Text("Default");
	HelpMarker("Default settings, no extra settings given");
	{
		ImGui::PushID("default");

		ImSettings config;
		config.push<std::tuple>()
			.as_dropdown(true)
			.pop();

		ImReflect::Input("my_tuple", my_tuple, config);
		ImGui::PopID();
	}
	ImGui::Text("Tuple inside of tuple");
	HelpMarker("You can also nest tuples");
	{
		ImGui::PushID("nested tuple");
		static std::tuple<std::tuple<std::string, float>, int> nested_tuple = { {"Nested", 3.14f}, 7 };
		ImSettings config;
		config.push<std::tuple>()
			____.as_dropdown(false)
			____.push<float>()
			________.min(0.0f)
			________.max(10.0f)
			________.as_slider()
			____.pop()
			____.push<std::string>()
			________.as_multiline()
			________.auto_resize()
			____.pop()
			.pop();
		ImReflect::Input("nested_tuple", nested_tuple, config);
		ImGui::PopID();
	}
	ImGui::Text("Tuple of tuples");
	HelpMarker("You can also nest tuples");
	{
		ImGui::PushID("tuple of tuples");
		static std::tuple<std::tuple<int, int>, std::tuple<std::string, std::string>> tuple_of_tuples = { {1, 2}, {"Hello", "World"} };
		ImReflect::Input("tuple_of_tuples", tuple_of_tuples);
		ImGui::PopID();
	}
	ImGui::Text("5 levels of tuples");
	HelpMarker("You can also nest tuples");
	{
		ImGui::PushID("5 levels of tuples");
		using tuple5 = std::tuple<int, std::tuple<int, std::tuple<int, std::tuple<std::string, std::tuple<int, int>>>>>;
		static tuple5 five_levels_of_tuples = { 1, { 2, { 3, { "Deep", { 4, 5 } } } } };
		ImSettings config;
		config.push<std::string>()
			.as_multiline()
			.auto_resize()
			.pop()