continue documenting the alib2std

alib2std/src/extensions/algorithm.hpp

alib2std/src/extensions/allocFix.hpp

alib2std/src/extensions/array.hpp

alib2std/src/extensions/bitset.hpp

alib2std/src/extensions/clone.hpp

alib2std/src/extensions/compare.hpp

alib2std/src/extensions/deque.hpp

alib2std/src/extensions/fdstream.hpp

alib2std/src/extensions/foreach.hpp

alib2std/src/extensions/forward_list.hpp

alib2std/src/extensions/forward_tree.hpp

alib2std/src/extensions/functional.hpp

alib2std/src/extensions/init.h

alib2std/src/extensions/iterator.hpp

alib2std/src/extensions/linear_set.hpp

alib2std/src/extensions/list.hpp

alib2std/src/extensions/map.hpp

alib2std/src/extensions/memory.hpp

alib2std/src/extensions/pair.hpp

alib2std/src/extensions/ptr_array.hpp