* Fixes#13119#13120 Cloud support & update brand
* rm base64 import to pass lint
* Update references across the board
* Removed final reference to CyberArk Conjur Secret Lookup
--- Removed reference to tower in InventorySource and InventoryUpdate model
--- Added a migration for above change
--- Added new CONTROLLER* variables in awx/main/models/credentials/__init__.py
--- Migrated awxkit to new CONTROLLER* variables
--- Updated the tests to use new CONTROLLER* variables
--- Fix some issues with upgrade path, rename more cases