changes to correct output of restart data for networks

corrections to intehead for netbalan data plus improvements createdoubhead

simplification of code due to changes in master

correction to default value for NETBALAN PRESSURE_CONVERGENCE_LIMIT

opm/output/eclipse/InteHEAD.hpp

@@ -123,6 +123,11 @@ namespace Opm { namespace RestartIO {
       int   nominated_phase;
      };
 
+
+     struct ActiveNetwork {
+         int actnetwrk;
+     };
+
      struct NetworkDims {
             int noactnod;
             int noactbr;
@@ -216,6 +221,7 @@ namespace Opm { namespace RestartIO {
         InteHEAD& tuningParam(const TuningPar& tunpar);
         InteHEAD& variousParam(const int version, const int iprog);
         InteHEAD& wellSegDimensions(const WellSegDims& wsdim);
+        InteHEAD& activeNetwork(const ActiveNetwork& actntwrk);
         InteHEAD& networkDimensions(const NetworkDims& nwdim);
         InteHEAD& netBalanceData(const NetBalanceDims& nwbaldim);
         InteHEAD& regionDimensions(const RegDims& rdim);

opm/output/eclipse/VectorItems/intehead.hpp

@@ -94,6 +94,8 @@ namespace Opm { namespace RestartIO { namespace Helpers { namespace VectorItems
 
         WHISTC = 71, //  Calendar year of report step
 
+        ACTNETWRK = 74, //  Indicator for active external network (= 0: no active network, = 2 Active network)
+
         NETBALAN_5 = 77, // NETBALAN, Item5
         NETBALAN_3 = 79, // NETBALAN, Item3