Resolved issue #23 (Directory /opt/app/12.1.0/grid changed after succ…

…essful root.sh in CRS configuration):

1. Added add_new_install_dir.yml to:
   1. Check to see if directory exists
   1. Only create a new directory, not change the ownership of an existing one
1. Updated install_dir.yml to:
   1. Add directory /opt/app first
   1. Include add_new_install_dir.yml for each required directory

roles/oracle_user/tasks/install_dir.yml

@@ -5,13 +5,13 @@
 
 
 - name:                 "Creating the Oracle Home and Oracle Base Directory"
-  file:
-    path:               "/opt/{{ item }}"
-    owner:              oracle
-    group:              "{{ oracle_user.install_group.name }}"
-    state:              directory
+  include_tasks:        add_new_install_dir.yml
   with_items:
-    - app/12.1.0/grid
-    - app/grid
-    - app/oracle
+    - /opt/app
+    - /opt/app/12.1.0/grid
+    - /opt/app/grid
+    - /opt/app/oracle
+  loop_control:
+    loop_var:           install_dir
+  tags:                 add_new_install_dir
 ...