At object.Put operation node does not transfer any
data. It is done in the stream inside, so we should
register duration from `object.Put` invocation until
`CloseAndRecv` on the stream.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
We can't rely on object size in the header because it
might be omitted on initial put or it can be 0xFF.. on
streaming data.
Signed-off-by: Alex Vanin <alexey@nspcc.ru>
