Make all doc fragments, module utils, and plugin utils private (#11896)

* Make all doc fragments private.

* Make all plugin utils private.

* Make all module utils private.

* Reformat.

* Changelog fragment.

* Update configs and ignores.

* Adjust unit test names.

plugins/doc_fragments/utm.py

@@ -1,54 +0,0 @@
-# Copyright (c) 2018, Johannes Brunswicker <johannes.brunswicker@gmail.com>
-# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-from __future__ import annotations
-
-
-class ModuleDocFragment:
-    DOCUMENTATION = r"""
-options:
-  headers:
-    description:
-      - A dictionary of additional headers to be sent to POST and PUT requests.
-      - Is needed for some modules.
-    type: dict
-    required: false
-    default: {}
-  utm_host:
-    description:
-      - The REST Endpoint of the Sophos UTM.
-    type: str
-    required: true
-  utm_port:
-    description:
-      - The port of the REST interface.
-    type: int
-    default: 4444
-  utm_token:
-    description:
-      - The token used to identify at the REST-API.
-      - See U(https://www.sophos.com/en-us/medialibrary/PDFs/documentation/UTMonAWS/Sophos-UTM-RESTful-API.pdf?la=en), Chapter
-        2.4.2.
-    type: str
-    required: true
-  utm_protocol:
-    description:
-      - The protocol of the REST Endpoint.
-    choices: [http, https]
-    type: str
-    default: https
-  validate_certs:
-    description:
-      - Whether the REST interface's SSL certificate should be verified or not.
-    type: bool
-    default: true
-  state:
-    description:
-      - The desired state of the object.
-      - V(present) creates or updates an object.
-      - V(absent) deletes an object if present.
-    type: str
-    choices: [absent, present]
-    default: present
-"""