Sergii

Rate Limiting works incorrectly if PeriodTimespan value is greater than Period

10

## Expected Behavior [Rate Limiting](../blob/develop/docs/features/ratelimiting.rst) works as documented for such parameter values: **Period**: 1 second **PeriodTimeSpan**: 30 seconds **Limit**: 100 **Scenario**: Request flow, 10-20 requests per sec, should be allowed....

#1590 Use correct interval for request counting

9

## Fixes #1590 - #1590 Incrementing request counter if request time is in the interval `[FirstRequestTime, FirstRequestTime + PeriodTimespan]` seems is incorrect. **PeriodTimespan** is a "ban" period, not a period...