DWDS/Dialing Concordance Code

+ various tweaks for less painful compilation with clang (clang++-6.0)

* remove non-ASCII constants in ddc_morph_gen.cpp

* remove non-ASCII constants in CreatePredictionBase.cpp

* remove non-ASCII constants in Morphan.cpp

* remove non-ASCII constants in Lemmatizers.cpp

* remove non-ASCII constants in Oborots.cpp

* remove non-ASCII constants in C_desc.cpp

* suppress some clang warnings

+ fixed missing switch cases in utilit.cpp

+ escaped non-ASCII character constants in utilit.cpp