Add example case for CAD workflow example

[simopier]

Reason

Recent development have demonstrated a CAD-based Geometry Workflow example for Multiphysics Fusion Problems Using OpenMC and MOOSE. An example case should be added to FENIX.

Design

Add a CAD-based Geometry Workflow example for Multiphysics Fusion Problems Using OpenMC and MOOSE. Work and results should be taken from M. Eltawila, A. J. Novak, P.C. A. Simon, G. Giudicelli, D. Gaston, “Investigating CAD-based Geometry Workflows for Multiphysics Fusion Problems Using OpenMC and MOOSE,” Submitted to Pacific Basin Nuclear Conference (PBNC) (2024)

Impact

Add an example case to showcase FENIX's capabilities.