Move to clang-format-6.0

This commit moves the codebase to the lastest clang-format file from
upstream, as well as clang-format-6.0.

Change-Id: Ice8313468097c0c42317fbb9e10ddf036e8cff4c
Signed-off-by: Ed Tanous <ed.tanous@intel.com>
diff --git a/crow/include/crow.h b/crow/include/crow.h
index edc0d7f..7e31cf3 100644
--- a/crow/include/crow.h
+++ b/crow/include/crow.h
@@ -1,4 +1,6 @@
 #pragma once
+#include "boost/beast/core.hpp"
+
 #include "crow/app.h"
 #include "crow/common.h"
 #include "crow/http_connection.h"
@@ -13,4 +15,3 @@
 #include "crow/timer_queue.h"
 #include "crow/utility.h"
 #include "crow/websocket.h"
-#include "boost/beast/core.hpp"