Add gups app (uses localized forall)
compile LLVM pass with -O0 for better debugging, add test targets w/o “-grappa-extractor”
make “ExtractorPass” automatic, but use “-grappa-extractor” to turn on extract itself
implement function to replace ld/st w/ put/get
optionally invoke extractor part, always fixup remaining globals with put/get
make explicit 'putget' target for testing