Generalize section rendering for workstation configuration pages

[pkcakeout]

Problem

There currently is huge hand-written template html file to add nice sections to the workstation configuration detail page:

However, when clicking "edit", the edit form does not have these sections, even though they are quite handy for such a massive page with many many different configuration options. Also the order of entries differs from the details page. A very confusing situation.

Solution

• I moved the grouping into the python code, specifically a module called visual_field_ordering. This defines a list of names that should be rendered on the different pages (edit form vs details) as well information about the sections
• The hand-written details template was replaced with a generic one that includes special handling for the different field types using some added template-filters and tags

[jmsmkn]

Replaced by #3366