doc_fragments: Clean up parameter types (network) (#52176)

* module_utils: Clean up parameter types

This PR includes:
- Parameter types added
- Copyright format fixes
- Short license statement
- Description fixes (only for a few files, then I stopped :-))

* More network stuff

* Fix typo

* Fix PEP8

* Fix booleans

* Fix typo

lib/ansible/plugins/doc_fragments/network_agnostic.py

@@ -1,25 +1,13 @@
-# Copyright (c) 2019 Ansible, Inc
-#
-# This file is part of Ansible
-#
-# Ansible is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# Ansible is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Ansible.  If not, see <http://www.gnu.org/licenses/>.
+# -*- coding: utf-8 -*-
+
+# Copyright: (c) 2019 Ansible, Inc
+# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
 
 
 class ModuleDocFragment(object):
 
     # Standard files documentation fragment
-    DOCUMENTATION = '''
+    DOCUMENTATION = r'''
 options: {}
 notes:
   - This module is supported on C(ansible_network_os) network platforms. See