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: I52f3c3faa814c6459d3b2d2958fe9a9c56f29841