add compare capability to standard library

alib2data/src/alphabet/Symbol.h

alib2data/src/automaton/Automaton.h

alib2data/src/automaton/common/State.cpp

alib2data/src/automaton/common/State.h

alib2data/src/container/Container.h

alib2data/src/grammar/Grammar.h

alib2data/src/label/Label.h

alib2data/src/object/Object.h

alib2data/src/object/ObjectBase.h

alib2data/src/primitive/Primitive.h

alib2data/src/regexp/RegExp.h

alib2data/src/regexp/formal/FormalRegExp.cpp

alib2data/src/regexp/unbounded/UnboundedRegExp.cpp

alib2data/src/std/compare.hpp

alib2data/src/string/CyclicString.cpp

alib2data/src/string/Epsilon.cpp

alib2data/src/string/LinearString.cpp

alib2data/src/string/String.h