Added a method to setup the library that takes DriverOptions.

src/Generator/LibraryHelpers.cs

@@ -28,16 +28,15 @@ namespace Cxxi
         void Postprocess(Library lib);
 
         /// <summary>
-        /// Setup your passes here.
+        /// Setup the driver options here.
         /// </summary>
-        /// <param name="passes"></param>
-        void SetupPasses(PassBuilder passes);
+        void Setup(DriverOptions options);
 
         /// <summary>
-        /// Setup your headers here.
+        /// Setup your passes here.
         /// </summary>
-        /// <param name="headers"></param>
-        void SetupHeaders(List<string> headers);
+        /// <param name="passes"></param>
+        void SetupPasses(PassBuilder passes);
 
         /// <summary>
         /// Called to generate text at the start of the text template.