Fix bug concerning null ApiRateLimit instance in RateLimitHandler

[baudev]

When using the master version, the following error occurs:

Argument 2 passed to Indragunawan\\ApiRateLimitBundle\\Service\\RateLimitHandler::getThrottle() must be an instance of Indragunawan\\ApiRateLimitBundle\\Annotation\\ApiRateLimit, null given, called in /var/www/html/vendor/indragunawan/api-rate-limit-bundle/Service/RateLimitHandler.php on line 157

The responsible lines are:

api-rate-limit-bundle/Service/RateLimitHandler.php

Lines 152 to 156 in 1096ebf

	if (null !== $annotation) {
	$this->enabled = $annotation->enabled;
	}
	list($key, $limit, $period) = $this->getThrottle($request, $annotation);

Indeed, if $annotation is null, the getThrottle method fails. It's why creating a new instance of ApiRateLimit is required if this case.

[IndraGunawan]

Hi @baudev, thanks for your PR.
just simple request changes about indentation, you can use php-cs-fixer to fix it

[baudev]

By the way, it could be great adding friendsofphp/php-cs-fixer in the composer.json.

[IndraGunawan]

thanks @baudev !