Allow subcmd for crypto map ipv6
new script approve-all; option --brief for approve

- approve-all approves all devices shown by missing-approve.
- "diamonds approve" is called with new option --brief
  - message "Reachability test failed" is suppressed
  - final "FAILED" message is suppressed
  - error and warning messages get prefix "device-name:"
v1.069
Build results of 648650f (on master)