added binary_search performance test
added binary_search performance test

Vishwa07/thrust,allendaicool/thrust,levendlee/thrust,malenie/thrust,google-code-export/thrust,julianromera/thrust,allendaicool/thrust,allendaicool/thrust,levendlee/thrust,malenie/thrust,h1arshad/thrust,bfurtaw/thrust,bfurtaw/thrust,rdmenezes/thrust,lishi0927/thrust,hemmingway/thrust,UIKit0/thrust,hemmingway/thrust,lishi0927/thrust,UIKit0/thrust,rdmenezes/thrust,h1arshad/thrust,h1arshad/thrust,bfurtaw/thrust,lishi0927/thrust,julianromera/thrust,Vishwa07/thrust,lishi0927/thrust,google-code-export/thrust,malenie/thrust,levendlee/thrust,allendaicool/thrust,julianromera/thrust,UIKit0/thrust,UIKit0/thrust,bfurtaw/thrust,Vishwa07/thrust,hemmingway/thrust,Vishwa07/thrust,rdmenezes/thrust,hemmingway/thrust,google-code-export/thrust,malenie/thrust,google-code-export/thrust,julianromera/thrust,h1arshad/thrust,levendlee/thrust,rdmenezes/thrust