piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 3085b76a0996d87ed32482f1023963ccbc28f4d3

Nick Mathewson 3085b76a09 changes file for #4881		14 gadi atpakaļ
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absolute_cookie_file	3085b76a09 changes file for #4881	14 gadi atpakaļ
bug4856	6fd61cf767 Fix a trivial log message error in renservice.c	14 gadi atpakaļ