* Select top level summary cases and ensembles for reload
Simplifies the summary case reloading process by removing the unnecessary `createAddressObjects` parameter and instead using the `showTreeNodes` flag to determine when to create address objects.
This change optimizes the loading process, especially for ensembles, by avoiding the creation of addresses for all cases, which improves performance. It also moves the responsibility of building tree nodes into a dedicated function `buildTreeNodesIfRequired` which is only called when needed.
* Remove obsolete parallel loop
* Use zoomAll
* Add updateConnectedEditors to make sure the tree nodes are updated correctly
* Guard use of back() on empty vector
* Add "Show Data Sources" to ensemble realizations
* Update summary plot as summary curve collection is not visible in tree view
* Set selection manager root in RiaApplication
* Always close both main windows if present
* Add copy/paste of summary multi plot
* Add test for RiuMainWindow::instance() before use
* Remove duplicated code
* Multiple Tree Views : Use getTreeViewWithItem() to find correct tree view
* Minor UI adjustments
Magne Sjaastad