Find a policy entry and create the Policy object

Find an entry in the policy table based on the error
log entry's properties, and create and save the
sdbusplus object for it.

Change-Id: Ifc09059169b5faedb4eae74a76d59847d7b2868b
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/interfaces.hpp b/interfaces.hpp
index a388f7e..df62545 100644
--- a/interfaces.hpp
+++ b/interfaces.hpp
@@ -1,10 +1,18 @@
 #pragma once
 
+#include <com/ibm/Logging/Policy/server.hpp>
+
 namespace ibm
 {
 namespace logging
 {
 
+template <typename... T>
+using ServerObject = typename sdbusplus::server::object::object<T...>;
+
+using PolicyInterface = sdbusplus::com::ibm::Logging::server::Policy;
+using PolicyObject = ServerObject<PolicyInterface>;
+
 enum class InterfaceType
 {
     POLICY