Introduce entrypoint provider for phpbench

Author: simPod

composer.json

@@ -25,6 +25,7 @@
         "nette/component-model": "^3.0",
         "nette/utils": "^3.0 || ^4.0",
         "nikic/php-parser": "^5.4.0",
+        "phpbench/phpbench": "^1.4",
         "phpstan/phpstan-phpunit": "^2.0.4",
         "phpstan/phpstan-strict-rules": "^2.0.3",
         "phpstan/phpstan-symfony": "^2.0.2",