Implement Release method that converts RawObject to read-only finalized Object instance. Remove ToV2 method overriding from Object. 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>