Cleanup of connection info:
1. Make consistent the UVE names for connection info
2. Rename process state to process info and move to NodeStatus,
   corresponding node manager changes
3. Namespace for connection info to avoid conflicts
4. Rename connection_info.sandesh to process_info.sandesh
5. Extract common function to updated process state into lib

Change-Id: I5e68691f510dad9a9134384513c17ad481406040
(cherry picked from commit af90e204d4d1576a9871946a29ec03aaa989b9ec)