CDB: Added option for verbose symbol loading, fixed image path.

Do not add all image paths (from different projects), keep a
base path and add current.

src/plugins/debugger/cdb/cdbdebugengine_p.h

@@ -157,6 +157,7 @@ struct CdbDebugEnginePrivate
     CdbDebugEventCallback   m_debugEventCallBack;
     CdbDebugOutput          m_debugOutputCallBack;    
     QSharedPointer<CdbDumperHelper> m_dumper;
+    QString                 m_baseImagePath;
 
     CdbDebugEngine* m_engine;
     DebuggerManager *m_debuggerManager;