Improvement: Cad geometry component test

[sandro-elsweijer]

Describe your changes here:
This PR adds a cad geometry component test. It refines a curved base forest and checks if it matches a target forest. This tests the msh reader as well as the cad geometries.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.70%. Comparing base (92212f7) to head (b56a956).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2150   +/-   ##
=======================================
  Coverage   78.69%   78.70%           
=======================================
  Files         115      115           
  Lines       19206    19211    +5     
=======================================
+ Hits        15115    15120    +5     
  Misses       4091     4091           

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[Davknapp]

Does OCC always guarantees backward compatability?

[Davknapp]

Suggested change

	t8_forest_element_linear_centroid (t8_forest_t forest, t8_locidx_t ltreeid, const t8_element_t *element,
	t8_forest_element_linear_centroid (const t8_forest_t forest, const t8_locidx_t ltreeid, const t8_element_t *element,

[Davknapp]

Suggested change

	t8_forest_element_linear_centroid (t8_forest_t forest, t8_locidx_t ltreeid, const t8_element_t *element,
	t8_forest_element_linear_centroid (const t8_forest_t forest, const t8_locidx_t ltreeid, const t8_element_t *element,

[Davknapp]

Suggested change

	t8_geometry_cad::t8_geom_point_batch_inside_element (t8_forest_t forest, t8_locidx_t ltreeid,
	t8_geometry_cad::t8_geom_point_batch_inside_element (const t8_forest_t forest, const t8_locidx_t ltreeid,

[Davknapp]

Suggested change

	t8_geom_point_batch_inside_element (t8_forest_t forest, t8_locidx_t ltreeid, const t8_element_t *element,
	t8_geom_point_batch_inside_element (const t8_forest_t forest, const t8_locidx_t ltreeid, const t8_element_t *element,

[Davknapp]

Suggested change

	int
	constexpr int

[Davknapp]

Suggested change

	int
	constexpr int

[Davknapp]

All the point operations should be constexpr, therefore this should be possible.