[#166] v2/netmap: add v2 structures for netmap service

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

v2/netmap/service.go

@@ -0,0 +1,27 @@
+package netmap
+
+import (
+	"context"
+
+	"github.com/nspcc-dev/neofs-api-go/v2/session"
+)
+
+type Service interface {
+	LocalNodeInfo(ctx context.Context, request *LocalNodeInfoRequest) (*LocalNodeInfoResponse, error)
+}
+
+type LocalNodeInfoRequest struct {
+	body *LocalNodeInfoRequestBody
+
+	metaHeader *session.RequestMetaHeader
+
+	verifyHeader *session.RequestVerificationHeader
+}
+
+type LocalNodeInfoResponse struct {
+	body *LocalNodeInfoResponseBody
+
+	metaHeader *session.ResponseMetaHeader
+
+	verifyHeader *session.ResponseVerificationHeader
+}