[CORD-2080] Adding 'tosca_key' support in xproto

Change-Id: Ib01c1cdcb81a51819c9e08703e6c76a4ffa09f17
diff --git a/.gitignore b/.gitignore
index 3117408..afc1bc2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,6 +3,7 @@
 .noseids
 local_certs.crt
 src/tosca/tmp.yaml
+src/grpc_client/KEYS.py
 
 # Test Coverage
 .coverage