A first ibcdfo test

[jmlarson1]

This PR allows for libEnsemble to interface with IBCDFO methods (via APOSMM, even though only one local optimization run will be performed)

[codecov]

Codecov Report

Attention: 3 lines in your changes are missing coverage. Please review.

Comparison is base (cd00116) 71.60% compared to head (991f98c) 84.77%.
Report is 4 commits behind head on develop.

❗ Current head 991f98c differs from pull request most recent head 04da3b1. Consider uploading reports for the commit 04da3b1 to get more accurate results

Files	Patch %	Lines
libensemble/gen_funcs/aposmm_localopt_support.py	93.54%	2 Missing ⚠️
libensemble/ensemble.py	94.44%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##           develop     #998       +/-   ##
============================================
+ Coverage    71.60%   84.77%   +13.16%     
============================================
  Files           88       88               
  Lines         8075     8117       +42     
  Branches      1441     1450        +9     
============================================
+ Hits          5782     6881     +1099     
+ Misses        2036     1016     -1020     
+ Partials       257      220       -37     

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