VOL-1318 OpenOLT Containerization

Committing following changes:
1. Skelaton code - methods and variables
2. Docker container initialization fixes
3. OpenOLT adapter successful registration with Core

Change-Id: I2b5d5a3c2dd049fa76d6f9dc0647e2c2d4408085
diff --git a/compose/adapters-openolt.yml b/compose/adapters-openolt.yml
index 84b171e..da3b0c3 100644
--- a/compose/adapters-openolt.yml
+++ b/compose/adapters-openolt.yml
@@ -26,8 +26,8 @@
       "/voltha/python/adapters/openolt/main.py",
       "-v",
       "--name=openolt",
-      "--kafka_adapter=${DOCKER_HOST_IP}:9093",
-      "--kafka_cluster=${DOCKER_HOST_IP}:9093",
+      "--kafka_adapter=${DOCKER_HOST_IP}:9092",
+      "--kafka_cluster=${DOCKER_HOST_IP}:9092",
       "--core_topic=rwcore"
     ]
     networks: