Core changes:
* avoid package-colliding variable naming
* avoid using pointers to IDs where unnecessary
* avoid using `idSDK` import alias pattern
* use `EncodeToString` for protocol string calculation and `String` for
printing
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
If the key can't be fetched, an error is always returned, so it makes
sense to fail the whole command inside of a `key.Get*()`.
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
Implement `lock` command and add it to `object` section. The command
accepts container argument (string `cid.ID`) and list of locked objects
(string `oid.ID` list). From the provided input `LOCK` object is
constructed and stored using NeoFS API protocol.
Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>