Logger changes

• By default, there is no logger initialization now. You need to define it yourself. For example:

  # Echo stream handler
  service_bus.logger.handlers.stdout_handler:
    class: Desperado\ServiceBus\Infrastructure\Logger\Handlers\StdOut\StdOutHandler

  # Default logger instance
  service_bus.logger:
    class: Monolog\Logger
    arguments:
      $name: '%service_bus.entry_point%'
      $handlers:
        - '@service_bus.logger.handlers.stdout_handler'

• Added adapter for logging to Graylog (UDP)
• Added logging SQL queries
• Fiexed error with PQ extension supports (It was impossible to get the correct number of affected records)
• Fixed error related to receiving messages in incorrect format