Introduce RimMswSegment and RimMswSegmentCollection classes to manage and visualize Multi-Segment Well (MSW) segments from Eclipse WELSEGS data. Update WelsegsRow to include source well name for correct segment grouping. Integrate new classes into the build system and UI, enabling accurate 3D well path representation and improved segment management in ResInsight.
* Add test models and projects used to verify experimental MSW export
* Fix text formatting of MSW tables
* Completes porting of all MSW tables
Supported keywords are `WELSEGS COMPSEGS WSEGVALV WSEGAICD`