gpg: Set some list options with --show-keys

* g10/gpg.c (main): Set some list options.

The new command --show-keys is commonly used to check the content of a
file with keys. In this case it can be expected that all included
subkeys and uids are of interested, even when they are already expired
or have been revoked.

• Signed-off-by: Werner Koch <wk@gnupg.org>