Display a workflow state badge in the AODocs header

Requirement:
Similarly to the "draft" and "main" badges displayed in the AODocs header when a document is checked-out, enable the display of the current document workflow state in a colored badge in the AODocs header.

Benefits:

Information in the header: Give more context on the document lifecycle to end-users without having them open the properties tab
Use of a colored badge: Increase the visibility of the workflow state in use cases where this information is critical