* concept for error reporting to set_error
- destination is DOOCS EqFct::set_error(code, message)
- StatusMonitor variables and/or Device status variables as input
- configuration per location via xml
- only single data source for set_error
- consistent updates of error code and error message, to remove
duplicate log lines
this depends on changes in ApplicationCore/DeviceModule!
* remove deprecated use of boost/test/test_case_template.hpp
* make configuration of status message input unneccesary
it will be found from the naming convention
* some refactoring
which was neccesary because Status definitions moved to
ControlSystemAdapter
* add docu for set_error
* add basic test for set_error tag

Co-authored-by: Dietrich Rothe <dietrich.rothe@desy.de>