Added BunnyPHP as AMQP (RabbitMQ) library

README.md

 *Libraries for working with event and task queues.*
 
 * [Bernard](https://github.com/bernardphp/bernard) - A multibackend abstraction library.
+* [BunnyPHP](https://github.com/jakubkulhan/bunny) - A performant pure-PHP AMQP (RabbitMQ) sync and also async (ReactPHP) library.
 * [Pheanstalk](https://github.com/pda/pheanstalk) - A Beanstalkd client library.
 * [PHP AMQP](https://github.com/php-amqplib/php-amqplib) - A pure PHP AMQP library.
 * [Tarantool Queue](https://github.com/tarantool-php/queue) - PHP bindings for Tarantool Queue.