Remove idaes.core.dmf and related code

[lbianchi-lbl]

Resolves #1368

Changes proposed in this PR:

• Remove most files in idaes/core/dmf
• Edit idaes/core/dmf/__init__.py to add deprecation to be shown when importing idaes.core.dmf
• Trim logic used to skip tests that need optional dependencies
• Remove code that was only used for DMF from setup.py
• Remove dmf_data directory

To review

• Check if the (very minimal) deprecation infrastructure is OK (@andrewlee94?)
• Check if the pages that have been modified in the docs make sense:
  • https://idaes-pse--1484.org.readthedocs.build/en/1484/how_to_guides/opt_dependencies.html
  • https://idaes-pse--1484.org.readthedocs.build/en/1484/how_to_guides/workflow/data_rec_parmest.html
• See if you spot any mention of the DMF in the code without a comment/deprecation or something like that

Legal Acknowledgement

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

1. I agree my contributions are submitted under the license terms described in the LICENSE.txt file at the top level of this directory.
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-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 2 lines in your changes missing coverage. Please review.

Project coverage is 76.83%. Comparing base (8140a3d) to head (2b8bc8b).
Report is 26 commits behind head on main.

Files with missing lines	Patch %	Lines
idaes/core/dmf/__init__.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1484      +/-   ##
==========================================
+ Coverage   76.37%   76.83%   +0.46%     
==========================================
  Files         393      376      -17     
  Lines       65086    61087    -3999     
  Branches    14426    13504     -922     
==========================================
- Hits        49708    46939    -2769     
+ Misses      12816    11767    -1049     
+ Partials     2562     2381     -181     

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[bpaul4]

The exceptions, deletions, and changes look good to me.