gpgv: add Eric Grosse's gpgv
gpgv: add Eric Grosse's gpgv

The openpgp package does not completely implement
rfc4880: it does not work for public keys with zero signatures.
Arguably, the standard is allowing too much flexibility,
but it's the standard and this omission in its implementation
has caused a problem.

Eric Grosse implemented a gpgv.go which correctly
handles this case.

Signed-off-by: Ronald G. Minnich <f569d0af9a3481c4007b95c7180d6c41009f2513@google.com>

rminnich/u-root,GanShun/u-root,u-root/u-root,GanShun/u-root,u-root/u-root,rminnich/u-root,GanShun/u-root,rminnich/u-root,hugelgupf/u-root,hugelgupf/u-root,rminnich/u-root,u-root/u-root,hugelgupf/u-root,hugelgupf/u-root