roles/sshd: Configure OpenSSH daemon

The *sshd* role can be used to configure the OpenSSH daemon. It supports
configuring a few options globally, as well as a limited set of options
in `Match` blocks (e.g. per-user/group configuration).

roles/sshd/handlers/main.yml

@@ -0,0 +1,4 @@
+- name: restart sshd
+  service:
+    name=sshd
+    state=restarted