Cutting planes update (Prep for InfGDP)

[dnguyen227]

This PR refactors the cutting planes implementation and provides extension points for InfiniteOpt integration.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 99.38%. Comparing base (a7f9eb5) to head (0b28ccc).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #134      +/-   ##
==========================================
+ Coverage   99.37%   99.38%   +0.01%     
==========================================
  Files          17       17              
  Lines        1926     1959      +33     
==========================================
+ Hits         1914     1947      +33     
  Misses         12       12              

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[pulsipher]

See below. Please avoid abbreviations unless they are universally known (e.g., CPU).