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: Ie36d234f4580029a7832a0cd179f3bb78a1a403f
diff --git a/sensors/host.cpp b/sensors/host.cpp
index 85a37dc..9cc1eee 100644
--- a/sensors/host.cpp
+++ b/sensors/host.cpp
@@ -35,7 +35,7 @@
 
 std::unique_ptr<Sensor> HostSensor::createTemp(const std::string& name,
                                                int64_t timeout,
-                                               sdbusplus::bus::bus& bus,
+                                               sdbusplus::bus_t& bus,
                                                const char* objPath, bool defer)
 {
     auto sensor =