move relinkIP and fdstreams to namespace ext;

aaccess2/src/aaccess.cpp

aarbology2/src/aarbology.cpp

acast2/src/acast.cpp

acompaction2/src/acompaction.cpp

aconversions2/src/aconversion.cpp

aconvert2/src/aconvert.cpp

aderivation2/src/aderivation.cpp

adeterminize2/src/adeterminize.cpp

aecho2/src/aecho.cpp

aepsilon2/src/aepsilon.cpp

agenerate2/src/agenerate.cpp

aintegral2/src/aintegral.cpp

aintrospection2/src/aintrospection.cpp

alangop2/src/alangop.cpp

alib2measurepp/src/provisioner/MeasurementProvisioner.cpp

alib2std/src/extensions/fdstream.cpp

alib2std/src/extensions/fdstream.hpp

alib2std/src/extensions/iostream.cpp

alib2std/src/extensions/iostream.hpp

aminimize2/src/aminimize.cpp