fix unneeded copying in foreach + bit refactoring

alib2algo/src/automaton/properties/AllEpsilonClosure.cpp

alib2algo/src/automaton/simplify/Minimize.cpp

alib2algo/src/automaton/simplify/Normalize.cpp

alib2algo/src/automaton/transform/Compaction.cpp

alib2algo/src/grammar/simplify/ToGNF.cpp

alib2data/src/automaton/FSM/CompactNFA.cpp

alib2data/src/automaton/FSM/DFA.cpp

alib2data/src/automaton/FSM/EpsilonNFA.cpp

alib2data/src/automaton/FSM/ExtendedNFA.cpp

alib2data/src/automaton/FSM/MultiInitialStateNFA.cpp

alib2data/src/automaton/FSM/NFA.cpp

alib2data/src/grammar/Regular/LeftLG.cpp

alib2data/src/grammar/Regular/LeftRG.cpp

alib2data/src/grammar/Regular/RightLG.cpp

alib2data/src/grammar/Regular/RightRG.cpp

alib2data/src/regexp/common/RegExpFromXMLParser.cpp

alib2data/src/regexp/common/RegExpFromXMLParser.h