start implementation of penalty function time-optimal contron in cython
start implementation of penalty function time-optimal contron in cython

qutip/qutip,zasdfgbnm/qutip,cgranade/qutip,anubhavvardhan/qutip,anubhavvardhan/qutip,zasdfgbnm/qutip,qutip/qutip,cgranade/qutip