chore: add IWYU directives to engine/Step.hpp and engine/StringTo.hpp (#238)

Author: daantimmer

cucumber_cpp/CucumberCpp.hpp

@@ -5,13 +5,15 @@
 #include "cucumber_cpp/library/Context.hpp"
 #include "cucumber_cpp/library/Hooks.hpp"
 #include "cucumber_cpp/library/Steps.hpp"
+#include "cucumber_cpp/library/engine/StringTo.hpp"
 #include "cucumber_cpp/library/report/Report.hpp"
 
 namespace cucumber_cpp
 {
     using cucumber_cpp::library::Application;
     using cucumber_cpp::library::Context;
     using cucumber_cpp::library::engine::Step;
+    using cucumber_cpp::library::engine::StringTo;
     using cucumber_cpp::library::report::ReportHandlerV2;
 }
 

cucumber_cpp/library/engine/Step.hpp

@@ -1,6 +1,9 @@
 #ifndef ENGINE_STEP_HPP
 #define ENGINE_STEP_HPP
 
+// IWYU pragma: private, include "cucumber_cpp/CucumberCpp.hpp"
+// IWYU pragma: friend cucumber_cpp/.*
+
 #include "cucumber_cpp/library/Context.hpp"
 #include "cucumber_cpp/library/engine/Table.hpp"
 #include <exception>

cucumber_cpp/library/engine/StringTo.hpp

@@ -1,6 +1,9 @@
 #ifndef ENGINE_STRINGTO_HPP
 #define ENGINE_STRINGTO_HPP
 
+// IWYU pragma: private, include "cucumber_cpp/CucumberCpp.hpp"
+// IWYU pragma: friend cucumber_cpp/.*
+
 #include "cucumber_cpp/library/Errors.hpp"
 #include <algorithm>
 #include <any>