SEBA-622 add grpcio-reflection

Change-Id: I42fdf76b60d5c69275369b0ab38558c21983a9d3
diff --git a/requirements.txt b/requirements.txt
index 624b97a..fa8eb5f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,8 @@
+confluent-kafka==0.11.6
 PyYAML==5.1
 Twisted==18.9.0
 googleapis-common-protos==1.5.8
 grpcio-tools==1.19.0
 grpcio==1.19.0
+grpcio-reflection==1.19.0
 kafkaloghandler==0.9.0