parmest with, or without, mpi-sppy

[DLWoodruff]

Fixes # .

Summary/Motivation: This is a version of parmest that does not need PySP, but can use mpi-sppy if it is present.

Changes proposed in this PR:

• drop use of PySP
• add optional use of mpi-sppy
• the bad news: use two files of code copied from mpi-sppy (this is legal, but less than ideal) so that we can avoid use of mpi-sppy but still have all the hooks
• TBD: if we like this, we will want to add tests that do depend on the presence of mpi-sppy, which is easy to assure in the test environment (it is pip installable); however, for the time being, those tests should probably run in mpi-sppy.

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.

[codecov]

Codecov Report

Merging #1778 (82538e0) into main (75439e9) will increase coverage by 1.17%.
The diff coverage is 81.16%.

@@            Coverage Diff             @@
##             main    #1778      +/-   ##
==========================================
+ Coverage   80.98%   82.15%   +1.17%     
==========================================
  Files         569      571       +2     
  Lines       71629    71699      +70     
==========================================
+ Hits        58008    58904     +896     
+ Misses      13621    12795     -826     

Impacted Files	Coverage Δ
pyomo/contrib/parmest/parmest.py	77.77% <77.46%> (+66.49%)	⬆️
pyomo/contrib/parmest/scenario_tree.py	78.12% <78.12%> (ø)
pyomo/contrib/parmest/create_ef.py	84.16% <84.16%> (ø)
pyomo/contrib/mindtpy/iterate.py	80.74% <0.00%> (+2.48%)	⬆️
pyomo/opt/plugins/sol.py	85.87% <0.00%> (+2.82%)	⬆️
pyomo/contrib/parmest/mpi_utils.py	75.00% <0.00%> (+54.16%)	⬆️
.../parmest/examples/reactor_design/reactor_design.py	72.22% <0.00%> (+72.22%)	⬆️
... and 5 more

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[kaklise]

I added minor comments to add the URL to mpi-sppy. Other than that, this looks good to me.

Stale review

[DLWoodruff]

Thanks for making the changes. The one test failure seems to be unrelated to parmest.

[blnicho]

I have a few minor questions

[blnicho]

We might want to add an issue to support k_aug in the future now that we have easier access to it through idaes-ext in our testing environment.