Remove guiWrapper from gui project & replace all functions with callbacks

src/input/InputManager.cpp

@@ -60,6 +60,18 @@ InputManager::~InputManager()
 	m_update_thread.join();
 }
 
+bool s_input_config_window_has_focus = false;
+
+bool InputManager::input_config_window_has_focus()
+{
+	return s_input_config_window_has_focus;
+}
+
+void InputManager::set_input_config_window_focus(bool has_focus)
+{
+	s_input_config_window_has_focus = has_focus;
+}
+
 void InputManager::load() noexcept
 {
 	for (size_t i = 0; i < kMaxController; ++i)