clang-format: Update to match docs repo

Update the .clang-format file.
Now includes header sorting and updating PointerAlignment.

Change-Id: I5c7690d8d83cdebe26ff3a73b90a2a8c17dd8054
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/item_updater_main.cpp b/item_updater_main.cpp
index 42343bb..3568124 100644
--- a/item_updater_main.cpp
+++ b/item_updater_main.cpp
@@ -1,7 +1,9 @@
+#include "config.h"
+
+#include "item_updater.hpp"
+
 #include <sdbusplus/bus.hpp>
 #include <sdbusplus/server/manager.hpp>
-#include "config.h"
-#include "item_updater.hpp"
 
 int main(int argc, char* argv[])
 {