Fem: Add properties to FemSolverObject

src/Mod/Fem/App/FemSolverObject.h

@@ -26,6 +26,7 @@
 #define Fem_FemSolverObject_H
 
 #include <App/FeaturePython.h>
+#include <App/PropertyFile.h>
 #include <Mod/Fem/FemGlobal.h>
 
 namespace Fem
@@ -40,6 +41,8 @@ public:
     FemSolverObject();
     ~FemSolverObject() override;
 
+    App::PropertyLinkList Results;
+    App::PropertyPath WorkingDirectory;
     // Attributes are implemented in the FemSolverObjectPython
 
     /// returns the type name of the ViewProvider