feat(lib): add compute_paths method for image method and "coherence" of paths example

[jeertmans]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 82.50000% with 56 lines in your changes missing coverage. Please review.

Project coverage is 77.74%. Comparing base (c8f2798) to head (0bfc7f6).
Report is 121 commits behind head on main.

Files with missing lines	Patch %	Lines
differt-core/src/geometry/triangle_mesh.rs	0.00%	49 Missing ⚠️
differt-core/src/scene/sionna.rs	0.00%	4 Missing ⚠️
differt/src/differt/geometry/triangle_mesh.py	93.33%	2 Missing ⚠️
differt/src/differt/geometry/paths.py	98.33%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #117      +/-   ##
==========================================
+ Coverage   74.79%   77.74%   +2.94%     
==========================================
  Files          28       25       -3     
  Lines        1349     1532     +183     
==========================================
+ Hits         1009     1191     +182     
- Misses        340      341       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.