Updates to scripts after refactor

- Run black to reformat all the scripts
- Update makefile test targets, pylint, and fix some of the issues found
- Update pxeconfig script for refactored nbhelper
- Add start of inventory script

Change-Id: I5f426ac2da840dc72f07f8a6844e199e47d49135
diff --git a/playbooks/aethercompute-playbook.yml b/playbooks/aethercompute-playbook.yml
index ba97a0f..551db47 100644
--- a/playbooks/aethercompute-playbook.yml
+++ b/playbooks/aethercompute-playbook.yml
@@ -6,5 +6,6 @@
   become: true
   roles:
     - netprep
+    - sriov
     - users
     - docker