Make lifo, lifoGroup and fifo filters backed error aware and remove
cleanup from the proxy.

Follow up on #1054, #1086 and #2239
Updates #1238

Signed-off-by: Alexander Yastrebov <alexander.yastrebov@zalando.de>

* separate argument tests from behaviour test
* use eskip to define filter configuration
* use TestFifo prefix for all test names

Signed-off-by: Alexander Yastrebov <alexander.yastrebov@zalando.de>

* feature: filter fifoWithBody that works similar to fifo(), but release deferred until body streaming to client was finished
* fix: fifo() and fifoWithBody() with canceled requests

Both filters did not check for canceled context from request before semaphore.Acquire, see golang/go#63615

Signed-off-by: Sandor Szücs <sandor.szuecs@zalando.de>

This is needed to improve the performance impact of this component.

Signed-off-by: Roman Zavodskikh <roman.zavodskikh@zalando.de>