- Grundig: added support for dvb*_config.xml channel lists

- experimental feature to allow editing Audio-PID (but turned out to have no effect for webOS 5)

source/ChanSort.Loader.Grundig/SerializerPlugin.cs

@@ -0,0 +1,16 @@
+using ChanSort.Api;
+
+namespace ChanSort.Loader.Grundig
+{
+  public class SerializerPlugin : ISerializerPlugin
+  {
+    public string DllName { get; set; }
+    public string PluginName => "Grundig dvb?_config.xml";
+    public string FileFilter => "*.xml";
+
+    public SerializerBase CreateSerializer(string inputFile)
+    {
+      return new Serializer(inputFile);
+    }
+  }
+}