Voltha Alarm Management using OpenNMS and Elasticsearch
- Added necessary configuration to run a self-contained instance of
  OpenNMS
- Elasticsearch/Logstash is responsible for the interception of voltha
  alarms and to forward to OpenNMS

Amendment:
- Cleaned up untouched opennms config files
- Added Dockerfile and scripts to override the default entrypoint script

Change-Id: Id611a330f7274d016281e734ade79d22bfc0356b
diff --git a/compose/opennms/etc/eventd-configuration.xml b/compose/opennms/etc/eventd-configuration.xml
new file mode 100644
index 0000000..d9d40e5
--- /dev/null
+++ b/compose/opennms/etc/eventd-configuration.xml
@@ -0,0 +1,10 @@
+<EventdConfiguration
+        TCPAddress="0.0.0.0"
+        TCPPort="5817"
+        UDPAddress="0.0.0.0"
+        UDPPort="5817"
+	receivers="5"
+	getNextEventID="SELECT nextval('eventsNxtId')"
+	socketSoTimeoutRequired="yes"
+	socketSoTimeoutPeriod="3000">
+</EventdConfiguration>