MEDIUM: ssl/cli: handle crt-store keywords in crt-list over the CLI

MEDIUM: ssl/cli: handle crt-store keywords in crt-list over the CLI

This patch adds crt-store keywords from the crt-list on the CLI.

- keywords from crt-store can be used over the CLI when inserting
  certificate in a crt-list
- keywords from crt-store are dumped when showing a crt-list content
  over the CLI

The ckch_conf_kws.func function pointer needed a new "cli" parameter, in
order to differenciate loading that come from the CLI or from the
startup, as they don't behave the same. For example it must not try to
load a file on the filesystem when loading a crt-list line from the CLI.

dump_crtlist_sslconf() was renamed in dump_crtlist_conf() and takes a
new ckch_conf parameter in order to dump relevant crt-store keywords.