Parser should reuse existing attributes from the cache to update list
of the parent links in it. Parent links should be unique.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
To encode attributes with semicolon or slash, use
backslash as escaped character.
Example:
User-Agent:NeoFS\/0.23
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
Attribute parser converts strings of attribute chain into
one-dimension array of NodeInfo attributes, that used
in network map.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
