Adds initial intermediate qt6 porting state

qt6-after/qt6-migrated-legatus/Lts/Services/ProjectDataManagement/settings.h

@@ -0,0 +1,25 @@
+/**
+  * Settings for ProjectDataManagement
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+#pragma once
+#include <QString>
+
+namespace NGL
+{
+class Settings;
+}
+
+namespace ProjectDataManagement
+{
+namespace Settings
+{
+//!< The real NGL::Settings - object
+NGL::Settings *settings();
+void setIniFile(const QString &ini);
+}
+
+} // namespace ProjectDataManagement