Enable nurbs in 2D SOLID elements

[amgebauer]

Enable nurbs in 2D solid elements.

[Copilot]

Pull request overview

Enables NURBS9 support for 2D solid elements by extending the solid element type system (factory/calc/integration/input specs) and updating regression input files to use SOLID NURBS9 with the newer parameter naming.

Changes:

• Add nurbs9 to implemented 2D solid cell types, plus required template instantiations (material evaluation, calc, extrapolation, fiber utilities).
• Add integration-rule applicability wiring for nurbs9 and update solid line shape selection to emit NURBS line cell types when parent is NURBS.
• Update multiple test input YAMLs from WALL/WALLNURBS to SOLID syntax (THICKNESS, PLANE_ASSUMPTION, etc.).

Reviewed changes

Copilot reviewed 15 out of 16 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
tests/input_files/w1nurbs9_pbc.4C.yaml	Migrates NURBS9 2D elements to SOLID ... THICKNESS/PLANE_ASSUMPTION syntax for regression.
tests/input_files/w1_w1nurbs.4C.yaml	Converts mixed NURBS9/QUAD4 wall elements to 2D solid element syntax.
tests/input_files/meshtying2D_nurbs9_dual_new_struct.4C.yaml	Updates meshtying NURBS9 elements to SOLID syntax to exercise new capability.
tests/input_files/meshtying2D_nurbs9_dual.4C.yaml	Same as above for the non-“new_struct” variant.
tests/input_files/contact2D_nurbs9_std_new_struc.4C.yaml	Updates contact NURBS9 elements to SOLID syntax for regression.
tests/input_files/contact2D_nurbs9_dual_consistent_new_struct.4C.yaml	Converts consistent dual contact case elements to SOLID NURBS9 syntax.
tests/input_files/contact2D_nurbs9_dual_consistent.4C.yaml	Same conversion for the non-“new_struct” variant.
src/solid_3D_ele/4C_solid_3D_ele_line.cpp	Makes line element shape() NURBS-aware based on parent element cell type.
src/solid_3D_ele/4C_solid_3D_ele_factory.hpp	Adds nurbs9 to the set of supported 2D solid cell types.
src/solid_3D_ele/4C_solid_3D_ele_calc_lib_plane.cpp	Adds explicit instantiations for plane formulations with nurbs9.
src/solid_3D_ele/4C_solid_3D_ele_calc_lib_integration.hpp	Defines applicable integration rules for nurbs9.
src/solid_3D_ele/4C_solid_3D_ele_calc.cpp	Registers nurbs9 for packability verification and solid calc instantiations.
src/solid_3D_ele/4C_solid_3D_ele.cpp	Adds input spec definition for 2D SOLID nurbs9 elements.
src/core/fem/src/general/utils/4C_fem_general_utils_gauss_point_extrapolation.cpp	Enables GP-to-node extrapolation instantiations for nurbs9.
src/core/fem/src/general/node/4C_fem_general_fiber_node_utils.cpp	Enables nodal fiber detection instantiation for nurbs9.