piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 57ef8c952ea7f432df05cdd184941b4f930a3b70

Nick Mathewson 57ef8c952e Make a new directory for specification proposals, and move some proposals there. Also, move dir-spec-v1.txt to spec.		%!s(int64=18) %!d(string=hai) anos
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100-tor-spec-udp.txt	57ef8c952e Make a new directory for specification proposals, and move some proposals there. Also, move dir-spec-v1.txt to spec.	%!s(int64=18) %!d(string=hai) anos
101-dir-voting.txt	57ef8c952e Make a new directory for specification proposals, and move some proposals there. Also, move dir-spec-v1.txt to spec.	%!s(int64=18) %!d(string=hai) anos