move deque to ext namespace

aaccess2/src/AutomatonAccess.cpp

aaccess2/src/AutomatonAccess.h

aaccess2/src/GrammarAccess.cpp

aaccess2/src/GrammarAccess.h

aaccess2/src/RegExpAccess.cpp

aaccess2/src/RegExpAccess.h

aaccess2/src/StringAccess.cpp

aaccess2/src/StringAccess.h

aaccess2/src/TreeAccess.cpp

aaccess2/src/TreeAccess.h

aaccess2/src/aaccess.cpp

aaccess2/src/common/AccessHelpers.hpp

acompare2/src/acompare.cpp

aconversions2/src/ConversionHandler.cpp

aconversions2/src/ConversionHandler.h

aconversions2/src/aconversion.cpp

aepsilon2/src/aepsilon.cpp

...src/arbology/exact/ExactNonlinearTreePatternAutomaton.cpp

alib2algo/src/arbology/exact/ExactTreePatternAutomaton.cpp

alib2algo/src/automaton/determinize/DeterminizeIDPDAPart.cxx