changed DoocsFactory to not create unnecessary decorators of the wrong type when auto-creating variables. Test for spectra still failing

Updater is using a vector of callbacks now. Not working as intended because there are different decorators where they should be the same.

removed obsolete duplicate test from the xml parser test. duplicates are possible and sometimes useful (?)

library compiles and tests are passing, except for duplicate test which has to be adapted and is not implemented yet

- Changes update to readLatest to allow consistent testing

changed variable mapper to actually produce spectra description, and the factory works out of the box. nice

started with tests for spectrum vs. array. Currently failing because of missing stuff, probably in the xml parser

changed to test also check auto-creation of arrays. Currently failing because spectra are auto-created

renamed the intermediate function 'new_create' back to create, which had been removed after it was obsolete

finally made the tests work with the new spectrum class. Fortunately this time the fault was at the test

added test that is sensitive on scalars and arrays (here spectra) really being read and written in a server. Currently failing because the syncutil is not worling with the new DoocsSpectrum implementation. The adapter currently really is broken

DoocsSpectrum derrives from TransferElement in the new scheme. update in server not working any more, need to also change DoocsScalar and then call readLatest on all.

*** Intermediate commit, not working *** Trying to make DoocsSpectum constuctible by name. Failing because the syncUtil is failing with decorators. Needs larger refactoring

removed direct use of CSA::ProcessArray (which is the implementation) and replaced it with NDRegisterAccessor (the base class) in the adapter. Usage in tests still pending

server based test for global writeable flag. all 'positive' tests moved from testVariableMapper to server based now. Errorhandling stays extra for the moment.