Import _gpgme_parse_timestamp from gpgme as parse_timestamp.
* common/gettime.h (parse_timestamp): New declaration. * common/gettime.c (_win32_timegm): New function imported from gpgme/src/conversion.c:_gpgme_timegm. (parse_timestamp): New function imported from gpgme/src/conversion.c:_gpgme_parse_timestamp.
- Signed-off-by: Neal H. Walfield <neal@g10code.de>