Implement J1939 Soft Socket for SAE J1939 Transport Protocol in Python

[polybassa]

AI-Assisted: yes (GitHub Copilot)

[codecov]

Codecov Report

❌ Patch coverage is 86.16780% with 61 lines in your changes missing coverage. Please review.
✅ Project coverage is 80.36%. Comparing base (ef642eb) to head (894fbc3).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
scapy/contrib/j1939.py	86.16%	61 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5011      +/-   ##
==========================================
+ Coverage   80.04%   80.36%   +0.32%     
==========================================
  Files         384      384              
  Lines       95624    96058     +434     
==========================================
+ Hits        76539    77196     +657     
+ Misses      19085    18862     -223     

Files with missing lines	Coverage Δ
scapy/contrib/j1939.py	85.53% <86.16%> (+1.31%)	⬆️

... and 26 files with indirect coverage changes

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[polybassa]

@BenGardiner Please have a look.