Split computeStatistics() into computeStatisticsSharedGrid() and
computeStatisticsIndividualGrids(), and move findKLayersForFormations
and extractCaseResults to an anonymous namespace as free functions.
mainGrid(), unionOfActiveCells(), computeUnionOfActiveCells(), and statisticsCaseCollection() default to null/no-op. Remove redundant overrides from RimEclipseCaseEnsemble.
* Enable time step selections and controls in view
* Support loading just what we need for statistics contour maps by using custom reader settings
* Close case once done with it unless there are active views.
* Add selection of user interface case (for result selection, display of wells, faults...)
* Avoid int overflow for nested progresses by using double
* Improve auto naming
* Misc. UI improvements