- Add RicImportGridAndSummaryEnsembleFeature with icon and menu/toolbar registration
- Register in main window toolbar, import menu (both windows)
- Add feature to plot window Standard toolbar
- Wire up post-import view and plot creation
- Skip grid/summary ensemble creation when no files of that type are found
- Keep focus in plot window when no grid ensembles are created
Introduce RimReservoirGridEnsemble and RimReservoirGridEnsembleBase to manage ensembles of grid-only Eclipse cases. Enable detection of identical grids for shared operations and statistics. Integrate grid ensembles into project structure, UI, and menu system. Refactor statistics and view handling to support both case groups and grid ensembles via a common interface. Add deferred grid loading, robust case referencing, and migration for well data source fields. New features and menu items allow creation and management of grid ensembles from file sets, enabling new workflows for grid-only ensemble analysis.