Prepare Restart File Support for Valves and ICDs

This commit identifies certain items in restart vectors ISEG and
RSEG that pertain to valves (keyword WSEGVALV) and spiral ICDs
(keyword WSEGSICD).  In particular, we identify segment type flag
and a couple of relevant values for this flag.  Also, relevant
parameters that describe the geometry and pressure drops of these
devices.

opm/output/eclipse/VectorItems/msw.hpp

@@ -30,7 +30,20 @@ namespace Opm { namespace RestartIO { namespace Helpers { namespace VectorItems
             OutSeg         = 1, // Outlet segment (one-based)
             InSegCurBranch = 2, // Inflow segment current branch (one-based)
             BranchNo       = 3, // Branch number (one-based)
+
+            SegmentType    = 11,
+
+            ICDScalingMode  = 18,
+            ICDOpenShutFlag = 19,
         };
+
+        namespace Value {
+            enum SegmentType : int {
+                AICD  = -8,
+                SICD  = -7,
+                Valve = -5,
+            };
+        } // Value
     } // ISeg
 
     namespace RSeg {
@@ -50,6 +63,26 @@ namespace Opm { namespace RestartIO { namespace Helpers { namespace VectorItems
             Pressure     = 11,  // Segment pressure
 
             item40  =  39,      // Unknown
+
+            ValveLength    = 40, // Length of valve
+            ValveArea      = 41, // Cross-sectional area of valve
+            ValveFlowCoeff = 42, // Valve's dimensionless flow coefficient
+            ValveMaxArea   = 43, // Maximal cross-sectional valve area
+
+            DeviceBaseStrength = 86,
+
+            CalibrFluidDensity   = 88,
+            CalibrFluidViscosity = 89,
+
+            CriticalWaterFraction = 90,
+            TransitionRegWidth    = 91,
+            MaxEmulsionRatio      = 92,
+            MaxValidFlowRate      = 97,
+
+            ICDLength = 102,
+
+            ValveAreaFraction  = 103,
+
             item106 = 105,      // Unknown
             item107 = 106,      // Unknown
             item108 = 107,      // Unknown