Add some more models (nw)

SabreTools.Models/OpenMSX/SCCPlusCart.cs

@@ -0,0 +1,18 @@
+using System.Xml;
+using System.Xml.Serialization;
+
+namespace SabreTools.Models.OpenMSX
+{
+    [XmlRoot("sccpluscart")]
+    public class SCCPlusCart
+    {
+        [XmlElement("boot")]
+        public string? Boot { get; set; }
+
+        [XmlElement("hash")]
+        public string? Hash { get; set; }
+
+        [XmlElement("remark")]
+        public string? Remark { get; set; }
+    }
+}