Add some more models (nw)

SabreTools.Models/OfflineList/Find.cs

@@ -0,0 +1,18 @@
+using System.Xml;
+using System.Xml.Serialization;
+
+namespace SabreTools.Models.OfflineList
+{
+    [XmlRoot("find")]
+    public class Find
+    {
+        [XmlAttribute("operation")]
+        public string? Operation { get; set; }
+
+        /// <remarks>Numeric?</remarks>
+        [XmlAttribute("value")]
+        public string? Value { get; set; }
+
+        public string? Content { get; set; }
+    }
+}