* Adopts dynamic PDM buttons with lambda callbacks
Refactors PDM push buttons from boolean fields to use the `addNewButton` API with direct lambda callbacks.
This change enforces a new coding guideline to extract complex or multi-line lambdas to dedicated `on*Clicked()` methods, improving code readability and maintainability.
- Replaces `PdmField` button fields with `PdmUiOrdering::addNewButton` calls.
- Extracts multi-line/control-flow lambdas into named methods in `RimFlowCharacteristicsPlot`, `RimGeoMechCase`, and `RimStatisticsContourMap`.
- Removes obsolete `defineEditorAttribute` overrides and `fieldChangedByUi` logic for these buttons.
- Updates `RimWellPathFracture` to utilize base class-provided button creation.
- Adds new lambda line-count guideline to the coding style documentation.
- Includes minor build fixes, such as adding `cafPdmUiButton.h` and correcting tooltip API usage.
Magne Sjaastad
Gaute Lindkvist