added unveil for image perf
added unveil for image perf

rockychen-dpaw/oim-cms,scottp-dpaw/oim-cms,rockychen-dpaw/oim-cms,parksandwildlife/oim-cms,parksandwildlife/oim-cms,scottp-dpaw/oim-cms,rockychen-dpaw/oim-cms,parksandwildlife/oim-cms,scottp-dpaw/oim-cms