Added end2end test case

Added end2end test case for exercising code from attention event to isolator.

Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Change-Id: I5bde1c50e4b70e284e99e71bb69d55041310c0d0
diff --git a/attn/logging.cpp b/attn/logging.cpp
new file mode 100644
index 0000000..423e9ca
--- /dev/null
+++ b/attn/logging.cpp
@@ -0,0 +1,14 @@
+#include <logging.hpp>
+#include <phosphor-logging/log.hpp>
+
+namespace attn
+{
+
+/** @brief Log message of type INFO using phosphor logging */
+template <>
+void log<INFO>(const char* i_message)
+{
+    phosphor::logging::log<phosphor::logging::level::INFO>(i_message);
+}
+
+} // namespace attn