New automountlocation module

There is a new automount location management module placed in the plugins folder:

plugins/modules/ipaautomountlocation.py

This module allows to ensure presence and absence of automount locations
that act as containers for automount onjects in ipa.

Here is the documentation for the module:

README-automountlocation.md

New example playbooks have been added:

playbooks/automount/automount-location-absent.yml
playbooks/automount/automount-location-present.yml

New tests for the module:

tests/automount/test_automountlocation.yml

README-automountlocation.md

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+Automountlocation module
+=====================
+
+Description
+-----------
+
+The automountlocation module allows the addition and removal of locations for automount maps
+
+It is desgined to follow the IPA api as closely as possible while ensuring ease of use.
+
+
+Features
+--------
+* Automount location management
+
+Supported FreeIPA Versions
+--------------------------
+
+FreeIPA versions 4.4.0 and up are supported by the ipaautomountlocation 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 ensure presence of an automount location:
+
+```yaml
+---
+- name: Playbook to add an automount location
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: ensure a automount location named DMZ exists
+    ipaautomountlocation:
+      ipaadmin_password: SomeADMINpassword
+      name: DMZ
+      state: present
+
+```
+
+Example playbook to ensure presence of multiple automount locations:
+
+```yaml
+---
+- name: Playbook to add an automount location
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: ensure a automount location named DMZ exists
+    ipaautomountlocation:
+      ipaadmin_password: SomeADMINpassword
+      name:
+        - DMZ
+        - PROD
+        - development
+        - test
+      state: present
+```
+
+
+Example playbook to ensure absence of an automount location:
+
+```yaml
+---
+- name: Playbook to ensure an automount location is absent
+  hosts: ipaserver
+  become: true
+
+  tasks:
+  - name: ensure automount locations LOCATION1 and LOCATION2 do not exist
+    ipaautomountlocation:
+      ipaadmin_password: SomeADMINpassword
+      name: 
+        - LOCATION1
+        - LOCATION2
+      state: absent
+```
+
+Variables
+=========
+
+ipaautomountlocation
+-------
+
+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` \| `location` | List of one or more automountlocation names. | yes
+`state` | The state to ensure. It can be one of `present`, or `absent`, default: `present`. | no
+
+
+Authors
+=======
+
+Chris Procter