feat: added metadata source field - this will determine the handling of the flags attribute

gaseous-signature-parser/Parsers/TosecParser.cs

@@ -365,6 +365,7 @@ namespace gaseous_signature_parser.parsers
                                 romObject.Crc = xmlGameDetail.Attributes["crc"]?.Value;
                                 romObject.Md5 = xmlGameDetail.Attributes["md5"]?.Value;
                                 romObject.Sha1 = xmlGameDetail.Attributes["sha1"]?.Value;
+                                romObject.SignatureSource = RomSignatureObject.Game.Rom.SignatureSourceType.TOSEC;
 
                                 // parse name
                                 string[] romNameTokens = romDescription.Split("(");