VOL-4019: Initial commit with grpc nbi, sbi, etcd, kafka and hw management rpcs.

Change-Id: I78feaf7da284028fc61f42c5e0c5f56e72fe9e78
diff --git a/pkg/nbi/server_structs.go b/pkg/nbi/server_structs.go
new file mode 100644
index 0000000..8811397
--- /dev/null
+++ b/pkg/nbi/server_structs.go
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2020-present Open Networking Foundation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Package nbi holds rpc server apis implemented
+package nbi
+
+// NativeHwManagementService refers to the struct defined for Service NativeHwManagementService
+type NativeHwManagementService struct {
+}