* #12974 Fix zone colors to honor LYR-file specification
- Map formation colors by name instead of palette index in updateFormationNamesOnPlot()
- Map formation colors by categoryValue lookup in updateCellResultLegend(), fixing
incorrect colors when showOnlyVisibleCategoriesInLegend filters the active set
- Add RimColorLegendCollection::createColorLegendFromFormationNames() and call it
from readAllFormationNames() so LYR colors are available after project load
- Auto-assign formation color legend when a formation case is set on a well log track
- Rename fileNameWoPath() to shortName() and switch to baseName() (no extension)
- Remove addCustomColorLegend() from RicImportFormationNamesFeature; logic now lives
in RimColorLegendCollection
- Set formation legend when creating new Well Log Extraction Curve track
Magne Sjaastad
Gaute Lindkvist