Interpolate distances with multiple `signed_distance_field`s

[LasNikas]

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 30 lines in your changes missing coverage. Please review.

Project coverage is 69.90%. Comparing base (8ab9e4d) to head (65d63b4).

Files with missing lines	Patch %	Lines
.../preprocessing/particle_packing/signed_distance.jl	0.00%	30 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #742      +/-   ##
==========================================
- Coverage   70.25%   69.90%   -0.35%     
==========================================
  Files          96       96              
  Lines        6017     6047      +30     
==========================================
  Hits         4227     4227              
- Misses       1790     1820      +30     

Flag	Coverage Δ
unit	69.90% <0.00%> (-0.35%)	:arrow_down:

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