get_connection_by_path
Description:
Returns the nmremoteconnection representing the connection at path.
Parameters:
| this | 
           the nmclient  | 
      
| path | 
           the D-Bus object path of the remote connection  | 
      
Returns:
| 
           the remote connection object on success, or null if the object was not known The connection is as received from D-Bus and might not validate according to verify.  |