[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/github.com/sirupsen/logrus/terminal_notwindows.go b/vendor/github.com/sirupsen/logrus/terminal_notwindows.go
new file mode 100644
index 0000000..3dbd237
--- /dev/null
+++ b/vendor/github.com/sirupsen/logrus/terminal_notwindows.go
@@ -0,0 +1,8 @@
+// +build !windows
+
+package logrus
+
+import "io"
+
+func initTerminal(w io.Writer) {
+}