Change `GenerateSequentialLayout` default value to `true`

src/CppParser/ParserGen/ParserGen.cs

@@ -52,7 +52,6 @@ namespace CppSharp
             var options = driver.Options;
             options.GeneratorKind = Kind;
             options.CommentKind = CommentKind.BCPLSlash;
-            options.GenerateSequentialLayout = true;
             var parserModule = options.AddModule("CppSharp.CppParser");
             parserModule.Headers.AddRange(new[]
             {

src/Generator.Tests/GeneratorTest.cs

@@ -27,7 +27,6 @@ namespace CppSharp.Utils
             options.OutputDir = Path.Combine(GetOutputDirectory(), "build", "gen", name);
             options.Quiet = true;
             options.GenerateDebugOutput = true;
-            options.GenerateSequentialLayout = true;
             var testModule = options.AddModule(name);
             testModule.SharedLibraryName = $"{name}.Native";
 

src/Generator/Options.cs

@@ -94,7 +94,7 @@ namespace CppSharp
         /// </value>
         public bool GenerateClassTemplates { get; set; }
         public bool GenerateInternalImports;
-        public bool GenerateSequentialLayout { get; set; }
+        public bool GenerateSequentialLayout { get; set; } = true;
         public bool UseHeaderDirectories;
 
         /// <summary>