[REQUEST] [LSAR/UNAR] Show password prompt when running outside terminal

[kyeastmood]

Currently when lsar/unar are invoked programatically (without a terminal), password prompt is never shown and the password must be provided in the command.

This works in most cases, however it causes a problem when an encrypted file is encountered in a bigger and otherwise unencrypted 7Z or ZIP archive because the operation is aborted in this case and must be restarted with a password.

Thanks