Update Logiqx DTD, add models (nw)

SabreTools.Models/Logiqx/BiosSet.cs

@@ -0,0 +1,19 @@
+using System.Xml;
+using System.Xml.Serialization;
+
+namespace SabreTools.Models.Logiqx
+{
+    [XmlRoot("biosset")]
+    public class BiosSet
+    {
+        [XmlAttribute("name")]
+        public string Name { get; set; }
+
+        [XmlAttribute("description")]
+        public string Description { get; set; }
+
+        /// <remarks>(yes|no) "no"</remarks>
+        [XmlAttribute("default")]
+        public string? Default { get; set; }
+    }
+}