Code added to Tor to support PIR-based onion service descriptor lookups

Bruce Montrose a551f0a6a8 Added poptReadOptions() and poptReadDefaultOptions() 23 anni fa
src a551f0a6a8 Added poptReadOptions() and poptReadDefaultOptions() 23 anni fa
TODO f00ef2098a made it clearer that the ORs currently don't support padding at all 23 anni fa