Add a "PerXSecond(Y)" - Max Y requests per X seconds

[kdefives]

Hello,

Today, this two possibilities exists:

RateLimiterMiddleware::perSecond(3); // Max. 3 requests per second
RateLimiterMiddleware::perMinute(5); // Max. 5 requests per minute

If could be interesting to have something like that:

RateLimiterMiddleware::perXSecond(X, Y); // Max. Y requests per X seconds

For instance, i am using API which authorize only 100 requests every 2 minutes. Today i am using this:

RateLimiterMiddleware::perMinute(50);

but it could be better to use something like this:

RateLimiterMiddleware::perXSecond(120, 100); //Max. 100 requests every 2 minutes

Regards