piros/tor: Code added to Tor to support PIR-based onion service descriptor lookups @ ca6682f3f86dbcf2b5346ae69d45293e8a59322b

Alexander Færøy 236cf49670 Add stub function for libor-trace.		7 lat temu
..
debug.h	cb8ac1f331 trace: Add a basic event-tracing infrastructure.	7 lat temu
events.h	cb8ac1f331 trace: Add a basic event-tracing infrastructure.	7 lat temu
include.am	236cf49670 Add stub function for libor-trace.	7 lat temu
trace.c	236cf49670 Add stub function for libor-trace.	7 lat temu
trace.h	236cf49670 Add stub function for libor-trace.	7 lat temu