Move Windows libs to libs/windows

libs/win/jaraco/windows/user.py

@@ -0,0 +1,16 @@
+import ctypes
+from .api import errors
+from .api.user import GetUserName
+from .error import WindowsError, handle_nonzero_success
+
+
+def get_user_name():
+	size = ctypes.wintypes.DWORD()
+	try:
+		handle_nonzero_success(GetUserName(None, size))
+	except WindowsError as e:
+		if e.code != errors.ERROR_INSUFFICIENT_BUFFER:
+			raise
+	buffer = ctypes.create_unicode_buffer(size.value)
+	handle_nonzero_success(GetUserName(buffer, size))
+	return buffer.value