help on gev distributions type-I II and II added
help on gev distributions type-I II and II added

PaddySchmidt/gosl,PaddySchmidt/gosl,cpmech/gosl,PaddySchmidt/gosl,cpmech/gosl,PaddySchmidt/gosl,PaddySchmidt/gosl,cpmech/gosl,PaddySchmidt/gosl,cpmech/gosl,cpmech/gosl