Fix REST API benchmark for Symlex 4.1

Thanks to ADmad to show us a miss in features for REST API benchmark of Symlex 4.1.
500 routes features was missing (to overload the router).

Benchmarks are updated with the add of 500 routes, and results are almost the same: less than 1% difference with benchmarks without this 500 routes.

PHP Benchmarks v3

Welcome to the 3rd version od PHP Benchmarks.

You will find a benchmark kit to add benchmark easily, new menus Community and Documentation.

Several frameworks are benchmarking, results will be available soon!