Derive Macro tealr::mlu::UserData

#[derive(UserData)]
{
    // Attributes available to this derive:
    #[tealr]
}

Implements UserData and TypeBody

It wraps the mlua::UserDataMethods into UserDataWrapper and then passes it to crate::TealData::add_methods.

Type body is implemented in a similar way, where it uses the TealData implementation to get the types