Grab DBus connection

Connect to DBus and own a busname.
Create a freedesktop ObjectManager.

Change-Id: I186dadc5a5172f44edf9cfc8d0a338677636de04
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/readd.cpp b/readd.cpp
index d8ad098..1cc2894 100644
--- a/readd.cpp
+++ b/readd.cpp
@@ -43,6 +43,7 @@
     options.reset();
 
     MainLoop loop(
+        sdbusplus::bus::new_default(),
         path,
         BUSNAME_PREFIX,
         SENSOR_ROOT);