refactor next primitive

alib2data/src/alphabet/NextSymbol.cpp

alib2data/src/label/NextLabel.cpp

alib2data/src/primitive/Bool.cpp

alib2data/src/primitive/Bool.h

alib2data/src/primitive/Character.cpp

alib2data/src/primitive/Character.h

alib2data/src/primitive/Integer.cpp

alib2data/src/primitive/Integer.h

alib2data/src/primitive/NextPrimitive.cpp

alib2data/src/primitive/NextPrimitive.h

alib2data/src/primitive/Primitive.cpp

alib2data/src/primitive/Primitive.h

alib2data/src/primitive/PrimitiveBase.h

alib2data/src/primitive/String.cpp

alib2data/src/primitive/String.h

alib2data/src/primitive/Unsigned.cpp

alib2data/src/primitive/Unsigned.h