Don't increase shared_ptrs use_count when forwarding.

Use std::move() to avoid increasing the use count of std::shared_ptr
when forwarding them to the vanguard object.

flow/flow_ebos_foam.cpp

@@ -52,10 +52,10 @@ void flowEbosFoamSetDeck(double setupTime, std::shared_ptr<Deck> deck,
     using Vanguard = GetPropType<TypeTag, Properties::Vanguard>;
 
     Vanguard::setExternalSetupTime(setupTime);
-    Vanguard::setExternalDeck(deck);
-    Vanguard::setExternalEclState(eclState);
-    Vanguard::setExternalSchedule(schedule);
-    Vanguard::setExternalSummaryConfig(summaryConfig);
+    Vanguard::setExternalDeck(std::move(deck));
+    Vanguard::setExternalEclState(std::move(eclState));
+    Vanguard::setExternalSchedule(std::move(schedule));
+    Vanguard::setExternalSummaryConfig(std::move(summaryConfig));
 }