piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 5e05079890f62c7d8c1ccb74ef4dc0347ec70385

Roger Dingledine 5e05079890 partial update of the spec		23 lat temu
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CLIENTS	f8c6339979 update docs to reflect a bit more reality	23 lat temu
FAQ	e0d734eb69 update based on discussions at discex iii	23 lat temu
HACKING	1ae95f66ed bring docs closer to reality	23 lat temu
TODO	afc0eb2c71 Tested backends for directory signing and checking. Directory parser completely refactored. Need documentation and integration. Explanitory mail forthcoming.	23 lat temu
tor-spec.txt	5e05079890 partial update of the spec	23 lat temu