Plot Template updates (#9002)

* Ensemble plot templates now have .erpt extension and new icon
* Default plot templates are given a checkmark overlay on the icon
* Context menu has been cleaned up a bit
* Old default template is really just the last used template. Rename it.
* Add max. recursive depth setting in preferences for plot template searches
* Only create plots based on correct template type when importing ensembles or single cases
* Support creating new plot from template explorer
* Update last used template when creating a new plot from a template

ApplicationLibCode/Commands/PlotTemplateCommands/RicCreateNewPlotFromTemplateFeature.h

@@ -0,0 +1,41 @@
+////////////////////////////////////////////////////////////////////////////////
+//
+//  Copyright (C) 2022     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 "cafCmdFeature.h"
+
+class RimSummaryCase;
+class RimSummaryCaseCollection;
+
+//==================================================================================================
+///
+//==================================================================================================
+class RicCreateNewPlotFromTemplateFeature : public caf::CmdFeature
+{
+    CAF_CMD_HEADER_INIT;
+
+protected:
+    bool isCommandEnabled() override;
+    void onActionTriggered( bool isChecked ) override;
+    void setupActionLook( QAction* actionToSetup ) override;
+
+private:
+    RimSummaryCase*           selectSummaryCase();
+    RimSummaryCaseCollection* selectEnsemble();
+};