FYI: new modules: crypto/sha256, crypto/sha512 (from coreutils)

[Jim Meyering]

Here's the ChangeLog entry.
It was a clean move: no changes whatsoever.

        New modules: crypto/sha256, crypto/sha512 (from coreutils)
        * modules/crypto/sha256: New file.
        * modules/crypto/sha512: Likewise.
        * lib/sha256.c: Likewise.
        * lib/sha256.h: Likewise.
        * lib/sha512.c: Likewise.
        * lib/sha512.h: Likewise.
        * lib/u64.h: Likewise.
        * m4/sha256.m4: Likewise.
        * m4/sha512.m4: Likewise.
        * MODULES.html.sh (Cryptographic computations (low-level)): List them.