public static void Decode_Delegate(this string data, CfgDecoder.DecodeDelegate dec) => new CfgDecoder(data).DecodeTagsFor(dec);
public static void Decode_Base(this string data, CfgDecoder.DecodeDelegate dec, IKeepUnrecognizedCfg unrecognizedKeeper, string tag = "b") => new CfgDecoder(data).DecodeTagsFor(dec, unrecognizedKeeper, tag);