piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 2d8e125b097f72128b4eaa821e76730a226b5682

Nick Mathewson fb1e654df7 Adding unittests build for windows		19 lat temu
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vc6	39ff8047a8 Revise project files; make them work	20 lat temu
vc7	fb1e654df7 Adding unittests build for windows	19 lat temu