api::first for supported datastructures

aconversions2/src/ConversionHandler.cpp

alib2data/src/Api.cpp

alib2data/src/Api.hpp

alib2data/src/alphabet/SymbolFromXMLParser.cpp

alib2data/src/alphabet/SymbolFromXMLParser.h

alib2data/src/alphabet/SymbolToXMLComposer.cpp

alib2data/src/automaton/AutomatonFromXMLParser.cpp

alib2data/src/automaton/AutomatonFromXMLParser.h

alib2data/src/automaton/AutomatonToXMLComposer.cpp

alib2data/src/container/ContainerFromXMLParser.cpp

alib2data/src/container/ContainerFromXMLParser.hpp

alib2data/src/container/ContainerToXMLComposer.cpp

alib2data/src/container/ContainerToXMLComposer.hpp

alib2data/src/exception/AlibException.cpp

alib2data/src/exception/AlibException.h

alib2data/src/exception/ExceptionFromXMLParser.cpp

alib2data/src/exception/ExceptionFromXMLParser.h

alib2data/src/exception/ExceptionToXMLComposer.cpp

alib2data/src/grammar/GrammarFromXMLParser.cpp

alib2data/src/grammar/GrammarFromXMLParser.h