Fixing test command to use vendored modules
Added first unit test

Change-Id: I88f6ca906764dbb9a071607bc0e9410d1b84ef0c
diff --git a/internal/bbsim/grpc_api_server.go b/internal/bbsim/grpc_api_server.go
index 5d92f70..3c3ab3e 100644
--- a/internal/bbsim/grpc_api_server.go
+++ b/internal/bbsim/grpc_api_server.go
@@ -1,9 +1,25 @@
+/*
+ * Copyright 2018-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 main
 
 import (
 	"context"
-	"gerrit.opencord.org/bbsim/api/bbsim"
-	"gerrit.opencord.org/bbsim/internal/bbsim/devices"
+	"github.com/opencord/bbsim/api/bbsim"
+	"github.com/opencord/bbsim/internal/bbsim/devices"
 	log "github.com/sirupsen/logrus"
 )