Use bridges when passing the optimizer to MathOptIIS

[odow]

Closes #64

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.40%. Comparing base (538c2a5) to head (27c8645).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #65   +/-   ##
=======================================
  Coverage   98.39%   98.40%           
=======================================
  Files          14       14           
  Lines        1435     1444    +9     
=======================================
+ Hits         1412     1421    +9     
  Misses         23       23           

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