piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ ddaeb4deee7b2a7772baac9a09abc54b689d8437

Roger Dingledine ddaeb4deee Be more lenient in our fix for bug 11149		12 lat temu
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bug11070	7450403410 Take out remaining V1 directory code.	12 lat temu
bug9107	f560eeadc3 Remove the unused circuit_dump_by_chan().	12 lat temu
require_023	ddaeb4deee Be more lenient in our fix for bug 11149	12 lat temu