[SEBA-660] : Adding Igmp support in BbSim

Change-Id: I9f5c7d8ad39ac82850b04e2c997996d6c47b32d2
diff --git a/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger/genswagger/helpers.go b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger/genswagger/helpers.go
new file mode 100644
index 0000000..3615596
--- /dev/null
+++ b/vendor/github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger/genswagger/helpers.go
@@ -0,0 +1,9 @@
+//+build go1.12
+
+package genswagger
+
+import "strings"
+
+func fieldName(k string) string {
+	return strings.ReplaceAll(strings.Title(k), "-", "_")
+}