New hbacsvc (HBAC Service) management module

There is a new hbacsvc (HBAC Service) management module placed in the plugins
folder:

  plugins/modules/ipahbacsvc.py

The hbacsvc module allows to ensure presence and absence of HBAC Services.

Here is the documentation for the module:

  README-hbacsvc.md

New example playbooks have been added:

  playbooks/hbacsvc/ensure-hbacsvc-absent.yml
  playbooks/hbacsvc/ensure-hbacsvc-present.yml

New tests added for pwpolicy:

  tests/hbacsvc/test_hbacsvc.yml

README-hbacsvc.md

@@ -0,0 +1,109 @@
+HBACsvc module
+==============
+
+Description
+-----------
+
+The hbacsvc (HBAC Service) module allows to ensure presence and absence of HBAC Services.
+
+
+Features
+--------
+* HBACsvc management
+
+
+Supported FreeIPA Versions
+--------------------------
+
+FreeIPA versions 4.4.0 and up are supported by the ipahbacsvc module.
+
+
+Requirements
+------------
+
+**Controller**
+* Ansible version: 2.8+
+
+**Node**
+* Supported FreeIPA version (see above)
+
+
+Usage
+=====
+
+Example inventory file
+
+```ini
+[ipaserver]
+ipaserver.test.local
+```
+
+
+Example playbook to make sure HBAC Service for http is present
+
+```yaml
+---
+- name: Playbook to handle HBAC Services
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  # Ensure HBAC Service for http is present
+  - ipahbacsvc:
+      ipaadmin_password: MyPassword123
+      name: http
+      description: Web service
+```
+
+Example playbook to make sure HBAC Service for tftp is present
+
+```yaml
+---
+- name: Playbook to handle HBAC Services
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  # Ensure HBAC Service for tftp is present
+  - ipahbacsvc:
+      ipaadmin_password: MyPassword123
+      name: tftp
+      description: TFTPWeb service
+```
+
+Example playbook to make sure HBAC Services for http and tftp are absent
+
+```yaml
+---
+- name: Playbook to handle HBAC Services
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  # Ensure HBAC Service for http and tftp are absent
+  - ipahbacsvc:
+      ipaadmin_password: MyPassword123
+      name: http,tftp
+      state: absent
+```
+
+
+Variables
+=========
+
+ipahbacsvc
+----------
+
+Variable | Description | Required
+-------- | ----------- | --------
+`ipaadmin_principal` | The admin principal is a string and defaults to `admin` | no
+`ipaadmin_password` | The admin password is a string and is required if there is no admin ticket available on the node | no
+`name` \| `cn` \| `service` | The list of hbacsvc name strings. | no
+`description` | The hbacsvc description string. | no
+`state` | The state to ensure. It can be one of `present` or `absent`, default: `present`. | no
+
+
+Authors
+=======
+
+Thomas Woerner