Preprocessor: refactor output for complementarity conditions

matlab/display_static_residuals.m

matlab/ep/extended_path_initialization.m

matlab/evaluate_steady_state.m

matlab/lmmcp/get_complementarity_conditions.m

.../perfect-foresight-models/perfect_foresight_solver_core.m

...ect-foresight-models/private/initialize_stacked_problem.m

matlab/perfect-foresight-models/solve_stacked_problem.m

preprocessor

tests/discretionary_policy/Gali_2015_chapter_3_nonlinear.mod