Adding --threads to command line

[jajhall]

Closes #3098

And, no, I can't see how to indent the "0: automatic * default" line. CLI does this, but only does when the first character in the line is ".

[codecov]

Codecov Report

❌ Patch coverage is 64.28571% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.15%. Comparing base (709b30e) to head (647814c).
⚠️ Report is 10 commits behind head on latest.

Files with missing lines	Patch %	Lines
app/HighsRuntimeOptions.h	60.00%	4 Missing ⚠️
highs/lp_data/HighsOptions.h	75.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           latest    #3099   +/-   ##
=======================================
  Coverage   73.14%   73.15%           
=======================================
  Files         430      430           
  Lines      103912   103937   +25     
  Branches    16715    16717    +2     
=======================================
+ Hits        76011    76036   +25     
  Misses      27625    27625           
  Partials      276      276           

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[Opt-Mucca]

I don't mind the lack of indentation. Verified that everything looks good when I checkout the branch. Thanks for doing this (left for something just after making the issue....)!

@galabovaa Is this fine to be merged into latest, or does this interfere with the release?

[jajhall]

I don't mind the lack of indentation. Verified that everything looks good when I checkout the branch. Thanks for doing this (left for something just after making the issue....)!

I need to update the documentation....

[jajhall]

I need to update the documentation....

Done!