- added partial support for Philips .xml channel lists

(There are MANY different file formats, only a few are currently supported)
- fixed "most-recently-used" getting reversed every time the program was started
- added "UTF-8 (Unicode)" character set to menu
- fixed disappearing columns when loading different channel lists without restarting the application

source/ChanSort.Loader.PhilipsXml/SerializerPlugin.cs

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