Add __future__ imports and __metaclass__ for automationhub

This patch is needed to pass Automation Hub tests.

roles/ipaclient/library/ipaclient_get_facts.py

@@ -1,6 +1,10 @@
 #!/usr/bin/python
 # -*- coding: utf-8 -*-
 
+from __future__ import (absolute_import, division, print_function)
+
+__metaclass__ = type
+
 DOCUMENTATION = """
 ---
 module: ipaclient_get_facts