new: [apache] allow to set ``core-rules`` in main service ``options``.

apache/hooks/init

@@ -21,3 +21,7 @@ if [ "$ssh_tunnel_cfg" ]; then
     apache_ssh_tunnel "$ssh_tunnel_cfg"
 fi
 
+core_rules=$(options-get core-rules 2>/dev/null) || true
+if [ "$core_rules" ]; then
+    apache_core_rules_add "$core_rules"
+fi