Implement method to get address of the object. Implement method to copy the
object w/o payload. Implement function of object deserialization.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
Define Object type that represents the immutable NeoFS object. Define
RawObject type that provides interface for convenient construction of NeoFS
object.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>