This CL adds utility code to process NIST CAVP test vectors using the
existing FileTest code.
Also add binaries for processing AESAVS (AES) and GCMVS (AES-GCM) vector
files.
Change-Id: I8e5ebf751d7d4b5504bbb52f3e087b0065babbe0
Reviewed-on: https://boringssl-review.googlesource.com/15484
Reviewed-by: Adam Langley <agl@google.com>
