Add possibility of timeout

[mcoughlin]

Once in a while as the survey loops the scheduler gets stuck searching for optimal. This implements a timeout if requested as we do not necessarily care about optimality.

[codecov]

Codecov Report

Merging #45 (3616f91) into main (ec4b5a3) will decrease coverage by 0.07%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main      #45      +/-   ##
==========================================
- Coverage   26.71%   26.63%   -0.08%     
==========================================
  Files          28       28              
  Lines        1355     1359       +4     
==========================================
  Hits          362      362              
- Misses        993      997       +4     

Impacted Files	Coverage Δ
dorado/scheduling/scripts/main.py	9.40% <0.00%> (-0.25%)	⬇️
dorado/scheduling/scripts/simsurvey.py	9.09% <0.00%> (-0.04%)	⬇️

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