Add more tests to dynamic surrogates

[Xinhe-Chen]

Addresses issue:

Summary/Motivation:

Add more tests to dynamic surrogates. This PR is created for #195

Changes proposed in this PR:

• Improve the codedev coverage.

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.md and COPYRIGHT.md 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.

[Xinhe-Chen]

Still working in progress. I will get this PR ready for review before the RC.

[lbianchi-lbl]

@Xinhe-Chen @dguittet: see IDAES/idaes-pse#1200 for the pytest issue.

[lbianchi-lbl]

@lbianchi-lbl and @Xinhe-Chen will touch base to solve the general testing issue this week.

[codecov]

Codecov Report

Patch coverage: 95.58% and project coverage change: +0.19 🎉

Comparison is base (e1771b4) 89.49% compared to head (e265596) 89.69%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #206      +/-   ##
==========================================
+ Coverage   89.49%   89.69%   +0.19%     
==========================================
  Files          67       67              
  Lines        8238     8303      +65     
==========================================
+ Hits         7373     7447      +74     
+ Misses        865      856       -9     

Impacted Files	Coverage Δ
...t_surrogates/dynamic/tests/test_Simulation_Data.py	97.90% <87.50%> (-2.10%)	⬇️
...arket_surrogates/dynamic/Time_Series_Clustering.py	37.67% <100.00%> (+1.98%)	⬆️
...n_market_surrogates/dynamic/Train_NN_Surrogates.py	28.75% <100.00%> (+1.18%)	⬆️
...gates/dynamic/tests/test_Time_Series_Clustering.py	99.24% <100.00%> (+0.16%)	⬆️
...rrogates/dynamic/tests/test_Train_NN_Surrogates.py	98.64% <100.00%> (+0.34%)	⬆️

... and 1 file with indirect coverage changes

☔ View full report in Codecov by Sentry.
📢 Do you have feedback about the report comment? Let us know in this issue.