Use the first available highlighted curve as basis for display of horizontal readout value. Fallback to single realization curves.
When selecting a realization in project tree, highlight all related curves
Make sure zoom rect works when readout annotations are active
* Use full name for grid case view
* FIx signed / unsigned issue
* Support drag/drop of file names into Main Window
* Add function to check if two grid cases are of equal size
* Result Info: Show cell result text for all linked views
* Improve how to specify cells to be included in calculation
- move view filter to calculation
- improve how to assign values to non-visible cells
- avoid computation between grids of different size
Closes#9482
