Added playbooks and scripts

- New mainweb, pxeboot, dns, aethermgmt playbooks
- Add netbox scripts
  - pxeboot information from netbox
  - full configuration for an edge node
- Update timesheets role
- Ignore files directory

Change-Id: Icfc9ce27b92837563ca01102b8a6793020f79b73
diff --git a/playbooks/timesheets-playbook.yml b/playbooks/timesheets-playbook.yml
index d119459..43fd34d 100644
--- a/playbooks/timesheets-playbook.yml
+++ b/playbooks/timesheets-playbook.yml
@@ -5,6 +5,7 @@
   hosts: timesheets
   become: true
   roles:
+    - users
     - acme
     - nginx
     - nodejs