[VOL-2235] Mocks and interfaces for rw-core

This update consists of mocks that are used by the rw-core
during unit testing.  It also includes interfaces used for unit
tests.

Change-Id: I20ca1455c358113c3aa897acc6355e0ddbc614b7
diff --git a/vendor/go.etcd.io/bbolt/.travis.yml b/vendor/go.etcd.io/bbolt/.travis.yml
new file mode 100644
index 0000000..a60300c
--- /dev/null
+++ b/vendor/go.etcd.io/bbolt/.travis.yml
@@ -0,0 +1,17 @@
+language: go
+go_import_path: go.etcd.io/bbolt
+
+sudo: false
+
+go:
+- 1.11
+
+before_install:
+- go get -v honnef.co/go/tools/...
+- go get -v github.com/kisielk/errcheck
+
+script:
+- make fmt
+- make test
+- make race
+# - make errcheck