testutil: Add a semaphore build script
testutil: Add a semaphore build script

Consolidate all build commands into a single script which can also be
run outside of the semaphore for greater reproducibility.

Signed-off-by: Rob Bradford <c49e1dc14cd52e2644816db47123896e0ac79025@intel.com>

ciao-project/ciao,kaccardi/ciao,01org/ciao,01org/ciao,kaccardi/ciao,ciao-project/ciao