piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ fab8fd2c18491440b37b71e140e23e6091bbbe32

Linus Nordberg fab8fd2c18 Add TestingDirAuthVoteGuard option for specifying relays to vote Guard on.		12 lat temu
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bug9206	fab8fd2c18 Add TestingDirAuthVoteGuard option for specifying relays to vote Guard on.	12 lat temu
bug9880	557f332957 Fix a bug in our bug 9776 fix.	12 lat temu