g10: Refactor cross sig check code.
* g10/tofu.c (BINDING_NEW): New enum value. (BINDING_CONFLICT): Likewise. (BINDING_EXPIRED): Likewise. (BINDING_REVOKED): Likewise. (ask_about_binding): Move cross sig check from here... (get_trust): ... and the conflict set building from here... (build_conflict_set): ... to this new function. (format_conflict_msg_part1): Replace parameter conflict with conflict_set. Drop parameter fingerprint. Update callers. (ask_about_binding): Drop unused parameter conflict and redundant parameter bindings_with_this_email_count. Rename parameter bindings_with_this_email to conflict_set. Update callers.
- Signed-off-by: Neal H. Walfield <neal@g10code.com>