piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ 6952b445cc121148eed87a12536cec8522f7d136

Roger Dingledine 6952b445cc stop authority reachability check on startup		16 lat temu
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immediate_reachability_check	4f307e0382 immediate reachability check for new relays	16 lat temu
no_reachability_test_on_startup	6952b445cc stop authority reachability check on startup	16 lat temu