piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 96759a609e65edf0ba48471242a94b63023fba3c

Roger Dingledine e0d734eb69 update based on discussions at discex iii		23 éve
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CLIENTS	f8c6339979 update docs to reflect a bit more reality	23 éve
FAQ	e0d734eb69 update based on discussions at discex iii	23 éve
HACKING	1ae95f66ed bring docs closer to reality	23 éve
TODO	e0d734eb69 update based on discussions at discex iii	23 éve
tor-spec.txt	f8c6339979 update docs to reflect a bit more reality	23 éve