ebos: Fix restart from ECL files

Some time loop stuff was missing in the doobly-doo, the init() method
of the well model was not called and there was the slightly deeper
issue that the initial solutions where not calculated on restarts
which breaks everything that relies on them. (at the moment, that's
everything which is related to non-trivial boundary contitions.)

ebos/eclwriter.hh

@@ -238,7 +238,7 @@ public:
         }
     }
 
-    void restartBegin()
+    void beginRestart()
     {
         bool enableHysteresis = simulator_.problem().materialLawManager()->enableHysteresis();
         bool enableSwatinit = simulator_.vanguard().eclState().get3DProperties().hasDeckDoubleGridProperty("SWATINIT");
@@ -277,11 +277,18 @@ public:
             const auto& thpresValues = restartValues.getExtra("THRESHPR");
             thpres.setFromRestart(thpresValues);
         }
+        restartTimeStepSize_ = restartValues.getExtra("OPMEXTRA")[0];
     }
 
+    void endRestart()
+    {}
+
     const EclOutputBlackOilModule<TypeTag>& eclOutputModule() const
     { return eclOutputModule_; }
 
+    Scalar restartTimeStepSize() const
+    { return restartTimeStepSize_; }
+
 
 private:
     static bool enableEclOutput_()
@@ -481,6 +488,7 @@ private:
     std::unique_ptr<Opm::EclipseIO> eclIO_;
     Grid globalGrid_;
     std::unique_ptr<TaskletRunner> taskletRunner_;
+    Scalar restartTimeStepSize_;
 
 
 };