Fixes #13749 - Handle Base64 and binary LDAP avatars

Before this change, we would always try to Base64.decode absolutely any
avatar. This resulted in broken images, as sometimes the avatars are
automatically turned into binary by net/ldap. In such cases, we want to...

Refs #21580 - require rbvmomi

The compute resource for VMware was using rbvmomi classes wihout
explicitly requiring rbvmomi. That can cause issues in tests.

Fixes #23826 - model class logger is now app

Fixes #23800 - i18n for exceptions fixed

Fixes #23813 - Allow searching audits by type=auth_source

Refs #23776 - correct deprecation for notice

Fixes #23775 - exposed random name generator

Fixes #21580 - normalize compute attributes (#4980)

Normalizes compute attributes in API show actions. For backwards
compatibility reasons this patch adds a new rabl node instead of
replacing 'vm_attrs'.

Fixes #23776 - Remove deprecations for 1.18

Fixes #23769 - consistency in docs for foreman/katello