piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 5a2374b0740ce662e4b323f104c8ff58164d996a

Nick Mathewson 5a2374b074 Merge remote-tracking branch 'tor-github/pr/315'		7 vuotta sitten
..
crypto	f45107e7de Rename crypto.c to crypto_cipher.c (since that's all it still has.)	8 vuotta sitten
mainloop	1e296bc6de Call event_set_mem_functions during initialization	7 vuotta sitten
or	5a2374b074 Merge remote-tracking branch 'tor-github/pr/315'	7 vuotta sitten
proto	8505522e50 Avoid a use-after-null-check in proto_socks.c	8 vuotta sitten
include.am	5aee26ee46 Move all use cases of micro-revision.i to a single place	8 vuotta sitten