Replace ply with lark in config.py

[michaelbynum]

Summary/Motivation:

This is step 1 of 3 for #3823.

Changes proposed in this PR:

• Replace ply with lark in config.py

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.

[michaelbynum]

@jsiirola - this kind of parsing is new to me, so please review closely. It took me a while to get ListOf(str) to work for all of these cases:

c.b = "'Hello, World'"  # ["Hello, World"]
c.b = "Hello, World"    # ["Hello", "World"]
c.b = "'Hello, World"   # error

[michaelbynum]

If we like this, I can work on the other places where we use ply.

[codecov]

Codecov Report

❌ Patch coverage is 93.61702% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.83%. Comparing base (f2d23a5) to head (6b96d5a).
⚠️ Report is 153 commits behind head on main.

Files with missing lines	Patch %	Lines
pyomo/common/config.py	93.61%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3836      +/-   ##
==========================================
- Coverage   89.48%   85.83%   -3.65%     
==========================================
  Files         904      903       -1     
  Lines      105385   105315      -70     
==========================================
- Hits        94299    90401    -3898     
- Misses      11086    14914    +3828     

Flag	Coverage Δ
builders	29.04% <6.38%> (+<0.01%)	⬆️
default	83.57% <93.61%> (?)
expensive	35.52% <6.38%> (?)
linux	70.60% <93.61%> (-18.61%)	⬇️
linux_other	70.60% <93.61%> (-16.17%)	⬇️
oldsolvers	29.69% <6.38%> (+<0.01%)	⬆️
osx	?
win	?
win_other	?
xpress95	?

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[michaelbynum]

We have a different plan.