sdbusplus: use shorter type aliases

The sdbusplus headers provide shortened aliases for many types.
Switch to using them to provide better code clarity and shorter
lines.  Possible replacements are for:
  * bus_t
  * exception_t
  * manager_t
  * match_t
  * message_t
  * object_t
  * slot_t

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I768b8efcac262ef07cf75f06486c6144c090e91a
diff --git a/interfaces.hpp b/interfaces.hpp
index 3014398..d43bcfd 100644
--- a/interfaces.hpp
+++ b/interfaces.hpp
@@ -10,7 +10,7 @@
 {
 
 template <typename... T>
-using ServerObject = typename sdbusplus::server::object::object<T...>;
+using ServerObject = typename sdbusplus::server::object_t<T...>;
 
 using ObjectPathInterface =
     sdbusplus::xyz::openbmc_project::Common::server::ObjectPath;