move type_index to ext namespace and cleanup

acast2/src/acast.cpp

alib2cli/src/ast/statements/SingleStatement.h

alib2common/src/abstraction/AlgorithmRegistry.hpp

alib2common/src/abstraction/OperationAbstraction.hpp

alib2common/src/abstraction/Registry.cpp

alib2common/src/abstraction/Registry.h

alib2common/src/abstraction/ValueOperationAbstraction.hpp

alib2common/src/abstraction/VoidOperationAbstraction.hpp

alib2common/src/container/ObjectsDeque.h

alib2common/src/container/ObjectsList.h

alib2common/src/container/ObjectsMap.h

alib2common/src/container/ObjectsPair.h

alib2common/src/container/ObjectsSet.h

alib2common/src/container/ObjectsTree.h

alib2common/src/container/ObjectsTrie.h

alib2common/src/container/ObjectsVector.h

alib2common/src/core/castApi.hpp

alib2common/src/core/multipleDispatch.hpp

alib2common/src/core/namingApi.hpp

alib2common/src/exception/CommonException.h