GimGui adding attributes

gistfile1.cpp

gim::Element element({"example_element"},
{
//here follows a list of name-value pairs to initialize the attributes.
//the values can be of any type.
    {"position", Vec2(23, 10)},
    {"size", Vec2(64, 64)},
    {"name", "Health meter"s},
    {"health", 100},
}, {/*children go here*/});

//attributes can be added afterwards
element.createAttribute("color", Color(255, 255, 0));

//we can now get attributes...
std::cout << element.getAttribute<std::string>("name");
//outputs: "Health meter"

//...and set them
element.setAttribute("health", 56);

//elements with all their children and attributes can
//even be deep copied very easily
gim::Element copy = element;