piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 4f8086fb20e93c477f033f58da17aa31b9c29fd6

Nick Mathewson 8c6b528b00 Disambiguate: Avoid defining two static functions both called gettweak()		8 lat temu
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donna	8c6b528b00 Disambiguate: Avoid defining two static functions both called gettweak()	8 lat temu
ref10	8c6b528b00 Disambiguate: Avoid defining two static functions both called gettweak()	8 lat temu