Add a new elasticsearch honeypot

adjust installer
adjust elasticpot configs to T-Pot's environment
create Dockerfile
adjust logstash config
update Readme

docker/elasticpot.old/docker-compose.yml

@@ -0,0 +1,20 @@
+version: '2.3'
+
+networks:
+  elasticpot_local:
+
+services:
+
+# Elasticpot service
+  elasticpot:
+    build: .
+    container_name: elasticpot
+    restart: always
+    networks:
+     - elasticpot_local
+    ports:
+     - "9200:9200"
+    image: "dtagdevsec/elasticpot:2006"
+    read_only: true
+    volumes:
+     - /data/elasticpot/log:/opt/ElasticpotPY/log