CppTools: Encode more information in log file of CppCodeModelInspector

Among others the timestamp and if provided, some extra id.

Change-Id: I017c2af197023347c88f2547e7bda8f22b3d00c4
Reviewed-by: Erik Verbruggen <erik.verbruggen@digia.com>

src/plugins/cpptools/cppmodelmanager.h

@@ -187,7 +187,7 @@ private:
     QStringList internalFrameworkPaths() const;
     QByteArray internalDefinedMacros() const;
 
-    void dumpModelManagerConfiguration();
+    void dumpModelManagerConfiguration(const QString &logFileId);
 
 private:
     static QMutex m_instanceMutex;