Merge branch 'feature/nat-926-log-events' into 'develop'

BC syslog: add log/log-events

See merge request !214

geant/gap_ansible/roles/bc_templates/routers/nokia/syslog/syslog.j2

 {% set hostname_as_a_list= inventory_hostname.split('.')%}
 {% set short_hostname= hostname_as_a_list[:3] | join('.')%}
 <log>
+{# log-events #}
+{% if nokia_log_events is defined %}
+  <log-events alu:operation="replace">
+  {% for log_event in nokia_log_events %}
+    <{{ log_event.stanza }}>
+        <event>{{ log_event.event }}</event>
+        <generate>{{ log_event.generate | lower }}</generate>
+    </{{ log_event.stanza }}>
+  {% endfor %}
+  </log-events>
+{% endif %}
 {# SYSLOG #}
 {% for server in nokia_syslog_servers %}
   {% with logid=server.log_id, logid_desc=server.description, logid_state=server.admin_state, logid_sources=server.log_sources, logid_dest="syslog", logid_filter=logfile.log_id if logfile.filter is defined %}