gRPC migration

Change-Id: I3129ae27d7ee12a23c7046f0d877e8064f2fd7f4
diff --git a/vendor/github.com/uber/jaeger-client-go/CODEOWNERS b/vendor/github.com/uber/jaeger-client-go/CODEOWNERS
new file mode 100644
index 0000000..0572efc
--- /dev/null
+++ b/vendor/github.com/uber/jaeger-client-go/CODEOWNERS
@@ -0,0 +1,2 @@
+
+* @jaegertracing/jaeger-maintainers