todo

# bindgen
TODO generate special constructors for String, StringName, and Variant (see gdextension/interface.odin)
TODO generate Variant constructors that convert from another type (see get_variant_from_type_constructor)
TODO generate Object in core instead of in variant/
TODO generate class methods
TODO merge core/, variant/, into godot/ package?

TODO rewrite state code to pre-calculate all fields used by templates
TODO add support for vararg utility functions
TODO add generation for built-in singletons
TODO add generation for native structures (?)
TODO add option to generate classes and methods in a class-per-package hierarchy (each class gets its own package)

DONE rewrite codegen to use temple templating engine
DONE add support for utility functions with default arg values
DONE add frontend generation for class methods
DONE add generation for engine (non-builtin) classes

# godin
TODO rewrite godin with better Odin parsing support via core:odin/parser
TODO rewrite templating & codegen using the temple template engine


- write libgodin
```c
class_info := Class_Info{
    
}

classdb_class := register_class(class_info)

register_class_method(classdb_class, "method_name", ...details...)

register_class_int_const(classdb_class, "CONST_NAME", CONST_VALUE, is_bitfield=true /*or false*/)

register_class_enum_const(classdb_class, "ENUM_CONST_NAME", My_Enum.Value, is_bitfield=true /*or false*/)

register_class_property(classdb_class, "property_name", VariantType.SomeType, property_getter_proc, property_setter_proc, hint = PropertyHint.None, hint_usage = "...", usage = PropertyUsageFlags.None)

// todo: register_class_property_group (how does it work?!)
// todo: register_class_property_subgroup (how does it work?!)

register_class_signal(classdb_class, "signal_name", args)

unregister_class(classdb_class)
```

- rewrite godin to use core:odin/parser