Configuration page: Workflow category

We need an Workflow category, this to house for example the following list of modules :

Scheduler
Prepopulate
Workspace
Workflow-ng
modr8
Notify
Nodequeue

But not just these, any medium to large size website will have some sort of editorial modules that are related to the workflow of content. Its highly likely for these modules to require their own category, since you are almost always in need of several modules to create a workflow.

To provide some background on this. The goal is to create sensible default categories, that house modules. Every category, should by default be able to house more then one module and we intend to only implement categories that are very likely to exist, and to house more then one module.#546956: [meta-issue] Overhaul of Information Architecture - To understand the whole IA movement.

#296693: Restrict access to empty top level administration pages - Is a bug, we do not need to fix in this patch.