[#203] Do not fail eACL check on EACLNotFound error

Now morph library returns error if there is not eACL in
sidechain storage. However in this case eACL check should
be passed since it is the same as having empty eACL table.

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

pkg/services/object/acl/eacl/validator.go

@@ -2,9 +2,11 @@ package eacl
 
 import (
 	"bytes"
+	"errors"
 
 	"github.com/nspcc-dev/neofs-api-go/pkg/acl/eacl"
 	crypto "github.com/nspcc-dev/neofs-crypto"
+	"github.com/nspcc-dev/neofs-node/pkg/morph/client/container/wrapper"
 	"github.com/nspcc-dev/neofs-node/pkg/util/logger"
 	"go.uber.org/zap"
 )
@@ -66,6 +68,10 @@ func (v *Validator) CalculateAction(unit *ValidationUnit) eacl.Action {
 		// get eACL table by container ID
 		table, err = v.storage.GetEACL(unit.cid)
 		if err != nil {
+			if errors.Is(err, wrapper.ErrEACLNotFound) {
+				return eacl.ActionAllow
+			}
+
 			v.logger.Error("could not get eACL table",
 				zap.String("error", err.Error()),
 			)