Added baseline for sphinx documentation and on2FACode event

The docs are still very WIP, but they should be functional. Just
execute `make html` in the docs folder, and you should be able to
navigate to `/docs/_build/html` and view it in your browser

examples/get.py

@@ -0,0 +1,8 @@
+# -*- coding: UTF-8 -*-
+
+from fbchat import Client
+from fbchat.models import *
+
+client = Client("<email>", "<password>")
+
+# This should show example usage of getAllUsers, getUsers, getUserInfo, getThreadInfo, getThreadList and getUnread