[VOL-1386]  This commit add "dep" as the package management tool
for voltha-go.

Change-Id: I52bc4911dd00a441756ec7c30f46d45091f3f90e
diff --git a/vendor/golang.org/x/sys/unix/.gitignore b/vendor/golang.org/x/sys/unix/.gitignore
new file mode 100644
index 0000000..e3e0fc6
--- /dev/null
+++ b/vendor/golang.org/x/sys/unix/.gitignore
@@ -0,0 +1,2 @@
+_obj/
+unix.test