Implement clang-tidy fixes

clang-tidy allows the CI robot to check many things via static analysis.

All changes here were made by the clang-tidy robot, and include a number
of modernization fixes.  updating the tidy file will be done at a later
date.

Signed-off-by: Ed Tanous <etanous@nvidia.com>
Change-Id: I98cc4d600a3c589675507958f6d2350b2141216b
diff --git a/dbus/dbushelper.hpp b/dbus/dbushelper.hpp
index 780f708..357d80e 100644
--- a/dbus/dbushelper.hpp
+++ b/dbus/dbushelper.hpp
@@ -25,7 +25,7 @@
 
     explicit DbusHelper(sdbusplus::bus_t& bus) : _bus(bus) {}
     DbusHelper() = delete;
-    ~DbusHelper() = default;
+    ~DbusHelper() override = default;
 
     DbusHelper(const DbusHelper&) = delete;
     DbusHelper& operator=(const DbusHelper&) = delete;