bind_config: Support server side configuration
Introduced the support to set options for a given ssh_bind through a
For options set more than once in a single file (or by files included in it
recursively) the first value set will be kept.
Differently from the session options configuration,
if an option previously set in one configuration file is redefined in a
later processed file, the latest will be kept.
Signed-off-by: Anderson Toshiyuki Sasaki <firstname.lastname@example.org>
Reviewed-by: Andreas Schneider <email@example.com>