changed: move setting of default vanguard to basicproperties.hh

use forwarding to avoid including dgfvanguard.hh unless it is actually
used

examples/lens_richards_ecfv.cpp

@@ -27,6 +27,7 @@
  */
 #include "config.h"
 
+#include <opm/models/io/dgfvanguard.hh>
 #include <opm/models/utils/start.hh>
 #include <opm/models/discretization/ecfv/ecfvdiscretization.hh>
 #include <opm/simulators/linalg/parallelbicgstabbackend.hh>