server/spotme: Replaced configuration of system user with role usage

roles/server/spotme/meta/main.yml

@@ -1,6 +1,9 @@
 ---
 
 dependencies:
+  - role: misc/system_user
+    system_user: "{{ spotme_system_user }}"
+    user_directory: "{{ spotme_user_directory }}"
   - role: node/application
   - role: mysql/database
     # database_user

roles/server/spotme/tasks/main.yml

@@ -9,22 +9,6 @@
       - openjdk-8-jdk-headless
     update_cache: yes
 
-- name: Configure system user
-  user:
-    state: present
-    name: "{{ spotme_system_user }}"
-    system: yes
-    shell: /bin/false
-    home: "{{ spotme_user_directory }}"
-
-- name: Configure user directory
-  file:
-    path: "{{ spotme_user_directory }}"
-    state: directory
-    owner: "{{ spotme_system_user }}"
-    group: "{{ spotme_system_user }}"
-    mode: "u=rwx,g=rx,o="
-
 # TODO Role for Git Username / Password Configuration
 
 - name: Configure git to use credential helper