Newton-Rhapson: Remove body and add bodies argument

[adtzlr]

Allow multiple bodies to be passed to the Newton-Rhapson algorithm. Take care of SolidBodyPressure

[codecov-commenter]

Codecov Report

Merging #227 (3961f5c) into main (6457b93) will increase coverage by 0.01%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main     #227      +/-   ##
==========================================
+ Coverage   98.27%   98.28%   +0.01%     
==========================================
  Files          67       67              
  Lines        2848     2865      +17     
==========================================
+ Hits         2799     2816      +17     
  Misses         49       49              

Impacted Files	Coverage Δ
felupe/mechanics/_solidbody_pressure.py	100.00% <100.00%> (ø)
felupe/tools/_newton.py	99.01% <100.00%> (+0.15%)	⬆️

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