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: I9029cc722e7712633c15436bd3868d8c3209f567
diff --git a/control/manager.hpp b/control/manager.hpp
index bb46a41..992a51a 100644
--- a/control/manager.hpp
+++ b/control/manager.hpp
@@ -40,8 +40,7 @@
      * @param[in] event - The event loop
      * @param[in] mode - The control mode
      */
-    Manager(sdbusplus::bus::bus& bus, const sdeventplus::Event& event,
-            Mode mode);
+    Manager(sdbusplus::bus_t& bus, const sdeventplus::Event& event, Mode mode);
 
     /**
      * Does the fan control inititialization, which is
@@ -54,12 +53,12 @@
     /**
      * The dbus object
      */
-    sdbusplus::bus::bus& _bus;
+    sdbusplus::bus_t& _bus;
 
     /**
      * The sdbusplus object manager
      */
-    sdbusplus::server::manager::manager _objMgr;
+    sdbusplus::server::manager_t _objMgr;
 
     /**
      * The fan zones in the system