Fixed incorrect social / global best in local_best.py
Fixed incorrect social / global best in local_best.py

The social / global best position was changed from the currently best found position to the historically best found position.

Author: CPapadim
email: fa31035b1795d55c3060273ebd6cd2ed989a8e2b@gmail.com

ljvmiranda921/pyswarms,ljvmiranda921/pyswarms