fixup imports order

isort -rc trezor_agent

trezor_agent/__main__.py

@@ -4,7 +4,7 @@ import logging
 import os
 import sys
 
-from . import formats, protocol, server, client
+from . import client, formats, protocol, server
 
 log = logging.getLogger(__name__)
 

trezor_agent/client.py

@@ -4,8 +4,7 @@ import logging
 import re
 import struct
 
-from . import factory
-from . import formats, util
+from . import factory, formats, util
 
 log = logging.getLogger(__name__)
 

trezor_agent/tests/test_client.py

@@ -2,8 +2,7 @@ import io
 
 import mock
 
-from .. import formats, util
-from .. import client, factory
+from .. import client, factory, formats, util
 
 ADDR = [2147483661, 2810943954, 3938368396, 3454558782, 3848009040]
 CURVE = 'nist256p1'