Add flag to not set ideal proc on worker threads

[ThadHouse]

Description

For resource reasons, I'm having to create a datapath with just a single threaded worker pool. I wouldn't want that thread affinitized to any specific thread. Add a flag to skip setting ideal proc on the worker thread.
 

Testing

Covered by existing tests

Documentation

Execution configs is currently an undocumented feature.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 85.65%. Comparing base (c6e28b0) to head (06a47d0).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #4511      +/-   ##
==========================================
- Coverage   86.13%   85.65%   -0.49%     
==========================================
  Files          56       56              
  Lines       15521    15515       -6     
==========================================
- Hits        13369    13289      -80     
- Misses       2152     2226      +74     

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[nibanks]

.NET needs to be updated too please.