docker_plugin - adding alias option and general cleanup (#161)

* Initial Commit

* Adding changelog fragment

tests/integration/targets/docker_plugin/tasks/tests/basic_with_alias.yml

@@ -0,0 +1,79 @@
+---
+- name: Register plugin name and alias
+  set_fact:
+    plugin_name: "{{ name_prefix }}"
+    alias: "test"
+
+- name: Create a plugin with an alias
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: present
+  register: create_1
+
+- name: Create a plugin  with an alias (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: present
+  register: create_2
+
+- name: Enable a plugin with an alias
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: enable
+  register: create_3
+
+- name: Enable a plugin with an alias (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: enable
+  register: create_4
+
+- name: Disable a plugin with an alias
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: disable
+  register: absent_1
+
+- name: Disable a plugin with an alias (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: disable
+  register: absent_2
+
+- name: Remove a plugin with an alias
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: absent
+  register: absent_3
+
+- name: Remove a plugin with an alias (Idempotent)
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: absent
+  register: absent_4
+
+- assert:
+    that:
+    - create_1 is changed
+    - create_2 is not changed
+    - create_3 is changed
+    - create_4 is not changed
+    - absent_1 is changed
+    - absent_2 is not changed
+    - absent_3 is changed
+    - absent_4 is not changed
+
+- name: Cleanup plugin with an alias
+  docker_plugin:
+    plugin_name: "{{ plugin_name }}"
+    alias: "{{ alias }}"
+    state: absent
+    force_remove: true