gpg: Change sqlite3_stepx to pass the sqlite3_stmt * to the callback.
* g10/sqlite.h (enum sqlite_arg_type): Add SQLITE_ARG_BLOB. (sqlite3_stepx_callback): New declaration. (sqlite3_stepx): Change the callback's type to sqlite3_stepx_callback, which passes an additional parameter, the sqlite3_stmt *. Update users.
- Signed-off-by: Neal H. Walfield <neal@g10code.com>