main: Implement more options

src/image.h

@@ -82,4 +82,8 @@ enum image_type image_type_from_string(const char * type);
 const char * image_type_to_string(enum image_type type);
 int image_hwrev_is_valid(struct image * image, const char * hwrev);
 
+extern int simulate;
+extern int noverify;
+extern int verbose;
+
 #endif