Modify the PyROS Logging System

[shermanjasonaf]

Summary/Motivation:

This PR modifies the PyROS solver output logging system so that the output shown by the default logger (or any other INFO-level logger) is simplified.

Changes proposed in this PR:

• Log the following at DEBUG, rather than INFO level: (i) full PyROS solver config, (ii) backup solver invocations, (iii) subproblem solve failures for the master feasibility and DR polishing problems, (iv) timing profile, (v) component statistics for the preprocessed model
• Add indication of backup solver invocation to the (INFO-level) iteration log table
• Log component statistics for the un-preprocessed model at INFO level
• Update tests and documentation according to the new changes

TODO

• (After Bugfix: ConfigDict.user_values() should return only child entries, not instance itself #3722 merged) Simplify logging of user options
• Add results for successfully solved individual separation problems to DEBUG-level logs

Legal Acknowledgement

By contributing to this software project, I have read the contribution guide and agree to the following terms and conditions for my contribution:

1. I agree my contributions are submitted under the BSD license.
2. I represent I am authorized to make the contributions and grant the license. If my employer has rights to intellectual property that includes these contributions, I represent that I have received permission to make contributions and grant the required license on behalf of that employer.

[shermanjasonaf]

@jas-yao @natalieisenberg @jsiirola

[codecov]

Codecov Report

❌ Patch coverage is 96.63866% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 89.33%. Comparing base (e8ed5dd) to head (cca2ef7).

Files with missing lines	Patch %	Lines
pyomo/contrib/pyros/separation_problem_methods.py	88.88%	2 Missing ⚠️
pyomo/contrib/pyros/master_problem_methods.py	66.66%	1 Missing ⚠️
pyomo/contrib/pyros/pyros.py	96.15%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3732      +/-   ##
==========================================
+ Coverage   89.31%   89.33%   +0.02%     
==========================================
  Files         896      896              
  Lines      103697   103774      +77     
==========================================
+ Hits        92619    92709      +90     
+ Misses      11078    11065      -13     

Flag	Coverage Δ
builders	29.09% <13.44%> (+<0.01%)	⬆️
default	85.94% <95.79%> (?)
expensive	35.85% <13.44%> (?)
linux	86.98% <96.63%> (-2.07%)	⬇️
linux_other	86.98% <96.63%> (+0.02%)	⬆️
osx	83.11% <95.79%> (+0.01%)	⬆️
win	85.23% <96.63%> (+<0.01%)	⬆️
win_other	85.23% <96.63%> (+<0.01%)	⬆️

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