[VOL-4290] Voltha go library updates for gRPC migration

Change-Id: I1aa2774beb6b7ed7419bc45aeb53fcae8a8ecda0
diff --git a/vendor/github.com/jonboulle/clockwork/.editorconfig b/vendor/github.com/jonboulle/clockwork/.editorconfig
new file mode 100644
index 0000000..4492e9f
--- /dev/null
+++ b/vendor/github.com/jonboulle/clockwork/.editorconfig
@@ -0,0 +1,12 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+indent_size = 4
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.go]
+indent_style = tab