Prevent futher regressions in gzipped chunk handling
Prevent futher regressions in gzipped chunk handling

Here we add a quick test where we compress the body of a request and
then make a response where the body is also chunked. We show that we
properly decode the content after handling the chunked encoding.

This should prevent regressions related to #593.

urllib3/urllib3,haikuginger/urllib3,urllib3/urllib3,Disassem/urllib3,Lukasa/urllib3,sigmavirus24/urllib3,tutumcloud/urllib3,silveringsea/urllib3,msabramo/urllib3,tutumcloud/urllib3,Geoion/urllib3,Geoion/urllib3,luca3m/urllib3,luca3m/urllib3,gardner/urllib3,sileht/urllib3,sornars/urllib3,boyxuper/urllib3,matejcik/urllib3,mikelambert/urllib3,denim2x/urllib3,boyxuper/urllib3,silveringsea/urllib3,msabramo/urllib3,haikuginger/urllib3,mikelambert/urllib3,matejcik/urllib3,gardner/urllib3,sornars/urllib3,sigmavirus24/urllib3,sileht/urllib3,Disassem/urllib3,denim2x/urllib3,Lukasa/urllib3