reimplemented PSO solver without dependencies on DEAP
reimplemented PSO solver without dependencies on DEAP

claesenm/optunity,chrinide/optunity,claesenm/optunity,MarkAWard/optunity,claesenm/optunity,MarkAWard/optunity,chrinide/optunity,MarkAWard/optunity,MarkAWard/optunity,claesenm/optunity,chrinide/optunity,chrinide/optunity