CMakePM: Save cmake parameters in qtcsettings.cmake also for initial run

This way projects can have access to all CMake parameters that were
issued from Qt Creator.

Previously the initial run was skipped, only the subsequent changes
were picked up.

Change-Id: I7a2262cdb9754ff666f78fd2e39663466f494f5f
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/cmakeprojectmanager/fileapireader.h

@@ -93,6 +93,8 @@ private:
     void replyDirectoryHasChanged(const QString &directory) const;
     void makeBackupConfiguration(bool store);
 
+    void writeConfigurationIntoBuildDirectory(const QStringList &configuration);
+
     std::unique_ptr<CMakeProcess> m_cmakeProcess;
 
     // cmake data: