Refactor borg to be backup and restore script.

defaults/main.yml

@@ -17,6 +17,12 @@ backup_run_folder: "{{ cloud_storage }}"
 backup_storage_key: "MyStorageKey"
 
 backup_client: true
-backup_host: "example"
+backup_app: app
 backup_cron_specialtime: "daily"
-backup_cron_owner: "{{ backup_owner }}"
+backup_cron_owner: "{{ backup_owner }}"
+
+backup_script:
+  prework_backup: |
+    echo "This is executed before borg backup. Please collect data for backup in path: {{ backup_storage }}"
+  postwork_restore: |
+    echo "This is executed after borg restore. Please collect data during restore from path: {{ backup_storage }}"