it is now possible to deploy wg files at a dedicated dir

rest goes into logfile

Refactor the whole process in subroutines to allow for thorough testing
- create_html
- replace_marker
- additional tests with against reference builds

Furthermore, adapt pipeline to run all tests at testing stage

and set external links

```-e '/PROCESSED AUTOMATICALLY/ d'```

    fullname=`cat $RESEARCH_ROOT/static/home/$name.html | grep ...`

This reverts merge request !8