Fix logging issues with non-latin characters on Windows

--- Logging error ---
Traceback (most recent call last):
  File "C:\Python36-32\lib\logging\__init__.py", line 994, in emit
    stream.write(msg)
  File "C:\Python36-32\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 158-165: character maps to <undefined>
Call stack:
  File "E:\nxdrive\engine\workers.py", line 175, in run
    self._execute()
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 90, in _execute
    self._scan()
  File "E:\nxdrive\engine\activity.py", line 109, in func_wrapper
    func(*args, **kwargs)
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 240, in _scan
    self._scan_recursive(info)
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 597, in _scan_recursive
    self._scan_recursive(child_info)
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 317, in _scan_recursive
    fs_children_info = client.get_children_info(info.path)
  File "E:\nxdrive\client\local_client.py", line 542, in get_children_info
    info = self.get_info(child_ref)
  File "E:\nxdrive\client\local_client.py", line 444, in get_info
    remote_ref = self.get_remote_id(ref)
  File "E:\nxdrive\client\local_client.py", line 394, in get_remote_id
    log.trace("Getting xattr %r from %r: %r", name, path, value)
  File "E:\nxdrive\logging_config.py", line 47, in trace
    self._log(TRACE, message, args, **kws)
Message: 'Getting xattr %r from %r: %r'
Arguments: ('ndrive', '\\\\?\\C:\\Users\\Windows10\\Documents\\Nuxeo Drive 4\\sdé f\\東京スカイツリー - Copie.jpg', 'defaultFileSystemItemFactory#default#e71a1d9c-db2b-4d01-98bd-5ba3fafe9481')
--- Logging error ---
Traceback (most recent call last):
  File "C:\Python36-32\lib\logging\__init__.py", line 994, in emit
    stream.write(msg)
  File "C:\Python36-32\lib\encodings\cp1252.py", line 19, in encode
    return codecs.charmap_encode(input,self.errors,encoding_table)[0]
UnicodeEncodeError: 'charmap' codec can't encode characters in position 158-165: character maps to <undefined>
Call stack:
  File "E:\nxdrive\engine\workers.py", line 175, in run
    self._execute()
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 90, in _execute
    self._scan()
  File "E:\nxdrive\engine\activity.py", line 109, in func_wrapper
    func(*args, **kwargs)
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 240, in _scan
    self._scan_recursive(info)
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 597, in _scan_recursive
    self._scan_recursive(child_info)
  File "E:\nxdrive\engine\watcher\local_watcher.py", line 317, in _scan_recursive
    fs_children_info = client.get_children_info(info.path)
  File "E:\nxdrive\client\local_client.py", line 542, in get_children_info
    info = self.get_info(child_ref)
  File "E:\nxdrive\client\local_client.py", line 444, in get_info
    remote_ref = self.get_remote_id(ref)
  File "E:\nxdrive\client\local_client.py", line 394, in get_remote_id
    log.trace("Getting xattr %r from %r: %r", name, path, value)
  File "E:\nxdrive\logging_config.py", line 47, in trace
    self._log(TRACE, message, args, **kws)
Message: 'Getting xattr %r from %r: %r'
Arguments: ('ndrive', '\\\\?\\C:\\Users\\Windows10\\Documents\\Nuxeo Drive 4\\sdé f\\東京スカイツリー.jpg', 'defaultFileSystemItemFactory#default#2a8721ee-963e-4c11-b432-66100017a8d4')