piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ c8eb39d67f4ea5f913998ea4aae2d3ba3f3c8258

Nick Mathewson c8eb39d67f Remove a couple of redundant lines from the makefile		9 lat temu
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.dummy	df76da0f3b Add a .dummy file in the changes directory to stop git from removing it	10 lat temu
bug17744_redux	c8eb39d67f Remove a couple of redundant lines from the makefile	9 lat temu