Add v2 version to go module name

Replace all elements from `v2` to root directory.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>

session/grpc/service.go

@@ -0,0 +1,75 @@
+package session
+
+import (
+	refs "github.com/nspcc-dev/neofs-api-go/v2/refs/grpc"
+)
+
+// SetOwnerId sets identifier of the session initiator.
+func (m *CreateRequest_Body) SetOwnerId(v *refs.OwnerID) {
+	if m != nil {
+		m.OwnerId = v
+	}
+}
+
+// SetExpiration sets lifetime of the session.
+func (m *CreateRequest_Body) SetExpiration(v uint64) {
+	if m != nil {
+		m.Expiration = v
+	}
+}
+
+// SetBody sets body of the request.
+func (m *CreateRequest) SetBody(v *CreateRequest_Body) {
+	if m != nil {
+		m.Body = v
+	}
+}
+
+// SetMetaHeader sets meta header of the request.
+func (m *CreateRequest) SetMetaHeader(v *RequestMetaHeader) {
+	if m != nil {
+		m.MetaHeader = v
+	}
+}
+
+// SetVerifyHeader sets verification header of the request.
+func (m *CreateRequest) SetVerifyHeader(v *RequestVerificationHeader) {
+	if m != nil {
+		m.VerifyHeader = v
+	}
+}
+
+// SetId sets identifier of the session token.
+func (m *CreateResponse_Body) SetId(v []byte) {
+	if m != nil {
+		m.Id = v
+	}
+}
+
+// SetSessionKey sets session public key in a binary format.
+func (m *CreateResponse_Body) SetSessionKey(v []byte) {
+	if m != nil {
+		m.SessionKey = v
+	}
+}
+
+// SetBody sets body of the response.
+func (m *CreateResponse) SetBody(v *CreateResponse_Body) {
+	if m != nil {
+		m.Body = v
+	}
+}
+
+// SetMetaHeader sets meta header of the response.
+func (m *CreateResponse) SetMetaHeader(v *ResponseMetaHeader) {
+	if m != nil {
+		m.MetaHeader = v
+	}
+}
+
+// SetVerifyHeader sets verification header of the response.
+func (m *CreateResponse) SetVerifyHeader(v *ResponseVerificationHeader) {
+	if m != nil {
+		m.VerifyHeader = v
+	}
+}