refactor and format regexps

alib2data/src/regexp/RegExp.cpp

alib2data/src/regexp/common/RegExpFromXMLParser.cpp

alib2data/src/regexp/common/RegExpFromXMLParser.h

alib2data/src/regexp/formal/FormalRegExp.cpp

alib2data/src/regexp/formal/FormalRegExp.h

alib2data/src/regexp/formal/FormalRegExpAlternation.cpp

alib2data/src/regexp/formal/FormalRegExpAlternation.h

alib2data/src/regexp/formal/FormalRegExpConcatenation.cpp

alib2data/src/regexp/formal/FormalRegExpConcatenation.h

alib2data/src/regexp/formal/FormalRegExpElement.cpp

alib2data/src/regexp/formal/FormalRegExpElement.h

alib2data/src/regexp/formal/FormalRegExpEmpty.cpp

alib2data/src/regexp/formal/FormalRegExpEmpty.h

alib2data/src/regexp/formal/FormalRegExpEpsilon.cpp

alib2data/src/regexp/formal/FormalRegExpEpsilon.h

alib2data/src/regexp/formal/FormalRegExpIteration.cpp

alib2data/src/regexp/formal/FormalRegExpIteration.h

alib2data/src/regexp/formal/FormalRegExpSymbol.cpp

alib2data/src/regexp/formal/FormalRegExpSymbol.h

alib2data/src/regexp/unbounded/UnboundedRegExp.cpp