Sector workflow doesn't check against content types that have active moderation

The module needs quite a bit of work to be completely up to scratch, so I think a followup ticket will be needed.

But for now:

• Remove the optional workflow that came from core's default install profile.
• Rename the helper class from WorkflowExtrasBase to simply SectorWorkflow (todo: convert this to a proper container class).
• Check that the node from the route has a moderation state before modifying local menu tabs.
• Refactor a few bits and pieces, like the use of string translations, a var_dump, and other simple cleanup.

Automatically closed - issue fixed for 2 weeks with no activity.