Implement EXACTLY the equivalent of the MBB problem from 99 line code, and verify against

You can make a specific subsolver which reflects the OC method, and which gives you exactly the same iterations as the default problem in the 99 line code (Python version). By setting CONLIN or the MMA in a particular way, it should also be equivalent (?).

No files, tests, or entry points are named. Start by locating the OC method, the default problem in the 99-line Python code, and the CONLIN or MMA configuration; compare their iterations and define equivalent iteration output as the completion criterion.

Written by the indexing model from the issue text.