iang/spiral-spir: Symmetric Private Information Retrieval (SPIR) built on Spiral

Ian Goldberg 60314dbab9 Typo in C++ test program output		2 lat temu
..
Makefile	67ef5574d3 Build the rust code with target-cpu=native	2 lat temu
spir.cpp	23df7c068e client query_finish API	2 lat temu
spir.hpp	6211a89d03 Touch up some API function names	2 lat temu
spir_ffi.h	23df7c068e client query_finish API	2 lat temu
spir_test.cpp	60314dbab9 Typo in C++ test program output	2 lat temu