fix unicode song metadata on windows (#523)

* test setting utf8 encoding with ffprobe

* use utf8 encoding for console (logging) output

* use proper sink package

* reset song metadata on windows

* fix nfo processing with missing year

* update changelog

ErsatzTV.Core/Metadata/Nfo/TvShowNfo.cs

@@ -9,8 +9,15 @@ namespace ErsatzTV.Core.Metadata.Nfo
         [XmlElement("title")]
         public string Title { get; set; }
 
+        [XmlIgnore]
+        public int? Year { get; set; }
+
         [XmlElement("year")]
-        public int Year { get; set; }
+        public string YearAsText
+        {
+            get => Year.HasValue ? Year.ToString() : null;
+            set => Year = !string.IsNullOrWhiteSpace(value) ? int.Parse(value) : default(int?);
+        }
 
         [XmlElement("plot")]
         public string Plot { get; set; }