Regression tests for OpenFAST v4.1.2 https://github.com/OpenFAST/openfast/releases/tag/v4.1.2
Test results for structural control linearization (StC_test_OC4Semi_Linear_Nac and StC_test_OC4Semi_Linear_Tow) changed very slightly with the correction of structural control linearization code in ServoDyn.