parsing and composing of xml as unranked tree

alib2data/src/RawApi.cpp

alib2data/src/RawApi.hpp

alib2data/src/tree/TreeFromRawParser.cpp

alib2data/src/tree/TreeFromRawParser.h

alib2data/src/tree/TreeFromXMLParser.cpp

alib2data/src/tree/TreeToRawComposer.cpp

alib2data/src/tree/TreeToRawComposer.h

alib2data/src/tree/unranked/UnrankedNode.cpp

araw2/makefile

araw2/src/araw.cpp

makefile