* Verify vector size only for cross plot regression curves
* Add filtering on axis orientation
Makes it possible to show only horizontal or vertical axes when selecting an axis to attach a curve to.
* Send curvesChanged signal to trigger multi plot updates
This signal will trigger update of axes and set correct scaling factor
* Use object name for axis object
* Use address for both x and y axis to create ensemble curve name
* Fix bug for drag/drop of ensemble object into plot
* Add RiaSummaryCurveAddress to RiaSummaryCurveDefinition
* Remove SummaryDataSource
* Use childFieldChangedByUi to trigger update of curves and titles
* Remove use of RifEnsembleStatisticsReader
* Add RimSummaryAddressSelector and RimEnsembleCrossPlotStatisticsCase
* Remove RifEnsembleStatisticsReader
* Add support for cross plot x-axis selection
* Support source stepping on ensemble cross plot curves
* Add isXAxisSummaryVector
