[sssd] Add sssd playbook

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

plays/sssd.yml

+#!/usr/bin/env ansible-playbook
+---
+- hosts: sssd
+  vars:
+    sssd: "{{ glob_sssd | default({}) | combine(loc_sssd | default({})) }}"
+  roles:
+    - sssd