Added SLSQP minimizer and fixed unittests (#34) * Added SLSQP minimizer and fixed unittests * Added SLSQP minimizer to unittests * increased speeds by 33% setting n_workers=1 * Cleaned up speed_test.ipynb * PEP8 * bump version Co-authored-by: Daniel Scott <[email protected]> Co-authored-by: Joshua Nielsen <[email protected]>