style: sort imports in api and utils modules

gns3server/utils/application_id.py

@@ -15,10 +15,10 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-from gns3server.controller.controller_error import ControllerError
-
 import logging
 
+from gns3server.controller.controller_error import ControllerError
+
 log = logging.getLogger(__name__)
 
 # IOU draws from the lower half: uBridge's iol_bridge uses application_id + 512