VOL-1867 move simulated olt from voltha-go to voltha-simolt-adapter

Sourced from voltha-go commit 251a11c0ffe60512318a644cd6ce0dc4e12f4018

Change-Id: I8e7ee4da1fed739b3c461917301d2729a79307f5
diff --git a/vendor/github.com/hashicorp/go-rootcerts/.travis.yml b/vendor/github.com/hashicorp/go-rootcerts/.travis.yml
new file mode 100644
index 0000000..80e1de4
--- /dev/null
+++ b/vendor/github.com/hashicorp/go-rootcerts/.travis.yml
@@ -0,0 +1,12 @@
+sudo: false
+
+language: go
+
+go:
+  - 1.6
+
+branches:
+  only:
+    - master
+
+script: make test