Add create_statistics_case

Remove original implementation not working in gridcasegroup.py
Add create_statistics_case object method

ApplicationLibCode/ProjectDataModelCommands/RimcIdenticalGridCaseGroup.h

@@ -0,0 +1,42 @@
+/////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2023- Equinor 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 "cafPdmField.h"
+#include "cafPdmObjectHandle.h"
+#include "cafPdmObjectMethod.h"
+
+#include <QString>
+
+#include <memory>
+
+//==================================================================================================
+///
+//==================================================================================================
+class RimcIdenticalGridCaseGroup_createStatisticsCase : public caf::PdmObjectMethod
+{
+    CAF_PDM_HEADER_INIT;
+
+public:
+    RimcIdenticalGridCaseGroup_createStatisticsCase( caf::PdmObjectHandle* self );
+
+    caf::PdmObjectHandle*            execute() override;
+    bool                             resultIsPersistent() const override;
+    std::unique_ptr<PdmObjectHandle> defaultResult() const override;
+};