Support:
* new status codes (object, container, session);
* object `Lock` message;
* different signature schemes.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Define constant for `WrongMagicNumber` local code. Define constant
`DetailIDCorrect` for correct magic detail. Add `ResetDetails`
and `AppendDetails` method pair. Replace `SetDetails` method with new
`SetStatusDetails` function which can be implemented using new methods.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
