Migrate many models to StructLayout

LinearExecutable/FixupPageTableEntry.cs

@@ -1,4 +1,6 @@
-namespace SabreTools.Models.LinearExecutable
+using System.Runtime.InteropServices;
+
+namespace SabreTools.Models.LinearExecutable
 {
     /// <summary>
     /// The Fixup Page Table provides a simple mapping of a logical page number
@@ -15,6 +17,7 @@
     /// </summary>
     /// <see href="https://faydoc.tripod.com/formats/exe-LE.htm"/>
     /// <see href="http://www.edm2.com/index.php/LX_-_Linear_eXecutable_Module_Format_Description"/>
+    [StructLayout(LayoutKind.Sequential)]
     public sealed class FixupPageTableEntry
     {
         /// <summary>
@@ -28,6 +31,6 @@
         /// This field specifies the offset following the last fixup record in the
         /// fixup record table. This is the last entry in the fixup page table. (n + 1)
         /// </remarks>
-        public uint Offset { get; set; }
+        public uint Offset;
     }
 }