b178397adf
Change the client to use Pod IP instead of host alias to talk to notification services Refactor client according to Single Responsibility Principle: 1,extract broker state management logic from daemon module to broker_state_manager 2,extract broker connection management logic from daemon module to broker_connection_manager 3,extract notification handling logic from daemon module to notification_handler 4,move NotificationWorker from daemon module to notification_worker module 5,change broker endpoint from host alias to IP which removes dependency to /etc/hosts 6,add logic to re-setup the broker connection in case of notificationservice pod IP changes Partial-Bug: 1924198 Signed-off-by: Bin Yang <bin.yang@windriver.com> Change-Id: Ifc9a16912f5ccebe0426a0d4e72c0f13dcbabcd7