Use double "s" in Transmissibilities, create cpp file for transmissibility condenser

ApplicationCode/ReservoirDataModel/RigTransmissibilityCondenser.h

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+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2017 -     Statoil ASA
+// 
+//  ResInsight is free software: you can redistribute it and/or modify
+//  it under the terms of the GNU General Public License as published by
+//  the Free Software Foundation, either version 3 of the License, or
+//  (at your option) any later version.
+// 
+//  ResInsight is distributed in the hope that it will be useful, but WITHOUT ANY
+//  WARRANTY; without even the implied warranty of MERCHANTABILITY or
+//  FITNESS FOR A PARTICULAR PURPOSE.
+// 
+//  See the GNU General Public License at <http://www.gnu.org/licenses/gpl.html> 
+//  for more details.
+//
+/////////////////////////////////////////////////////////////////////////////////
+
+#pragma once
+
+#include "cafAssert.h"
+
+#include <map>
+#include <vector>
+#include <set>
+
+class RigTransmissibilityCondenser
+{
+public:
+    class CellAddress
+    {
+     public:
+        enum CellType { ECLIPSE, STIMPLAN };
+
+        CellAddress(): m_isExternal(false), 
+                       m_cellType(STIMPLAN), 
+                       m_globalCellIdx(-1) {}
+        CellAddress(bool     isExternal, CellType cellType, size_t   globalCellIdx)
+         : m_isExternal(isExternal), 
+           m_cellType(cellType), 
+           m_globalCellIdx(globalCellIdx) {}
+
+        bool     m_isExternal;
+        CellType m_cellType;
+        size_t   m_globalCellIdx;
+
+        bool operator==(const CellAddress& o) { return (m_isExternal == o.m_isExternal) && (m_cellType == o.m_cellType) && (m_globalCellIdx == o.m_globalCellIdx); }
+
+        // Ordering external after internal is important for the matrix order internally
+        bool operator<(const CellAddress& other) const
+        {
+            if (m_isExternal    != other.m_isExternal)    return !m_isExternal; // Internal cells < External cells
+            if (m_cellType      != other.m_cellType)      return m_cellType < other.m_cellType; // Eclipse < StimPlan
+            if (m_globalCellIdx != other.m_globalCellIdx) return m_globalCellIdx < other.m_globalCellIdx;
+            return false;
+        }
+    };
+
+    void addNeighborTransmissibility(CellAddress cell1, CellAddress cell2, double transmissibility);
+
+    std::set<CellAddress> externalCells();
+
+    double condensedTransmissibility( CellAddress externalCell1, CellAddress externalCell2);
+
+private:
+    void calculateCondensedTransmissibilitiesIfNeeded();
+
+    std::map<CellAddress, std::map<CellAddress, double> > m_neighborTransmissibilities;
+    std::map<CellAddress, std::map<CellAddress, double> > m_condensedTransmissibilities;
+    std::set<CellAddress> m_externalCellAddrSet;
+};