Derive Macro savefile_derive::Savefile

#[derive(Savefile)]
{
    // Attributes available to this derive:
    #[savefile_versions]
    #[savefile_versions_as]
    #[savefile_introspect_ignore]
    #[savefile_introspect_key]
    #[savefile_ignore]
    #[savefile_default_val]
    #[savefile_default_fn]
}