make rich_v24a default
make rich_v24a the default in all rich setups, namely CFV and Electron.
This rich geometry was developed a year ago, in part it includes changes as outlined in https://redmine.cbm.gsi.de/issues/2786
Some outstanding issues still remain, see https://redmine.cbm.gsi.de/issues/3139
Explanations at https://indico.gsi.de/event/18677/contributions/75927/attachments/45805/65137/UpdateRichGeometry_Softwaremeeting_20231130.pdf Test Simulation at https://indico.gsi.de/event/19193/contributions/77254/attachments/46185/65752/firstSimulation_Software_20240125.pdf
MR to bring in geometry is available at !245 (merged)