Run clang-format on the entire repo

This patch clang-formats the entire repo. Third-party code is
excluded.

I needed to fix up the .clang-format file so that all the header
includes are ordered properly. I could have sworn that it used to work
without the extra modification, but I guess not.

Signed-off-by: Philipp Schrader <philipp.schrader@gmail.com>
Change-Id: I64bb9f2c795401393f9dfe2fefc4f04cb36b52f6
diff --git a/y2020/setpoint_setter.cc b/y2020/setpoint_setter.cc
index 0ca67e7..2bfb917 100644
--- a/y2020/setpoint_setter.cc
+++ b/y2020/setpoint_setter.cc
@@ -1,7 +1,8 @@
-#include "aos/events/shm_event_loop.h"
-#include "aos/init.h"
 #include "gflags/gflags.h"
 #include "glog/logging.h"
+
+#include "aos/events/shm_event_loop.h"
+#include "aos/init.h"
 #include "y2020/setpoint_generated.h"
 
 DEFINE_double(accelerator, 250.0, "Accelerator speed");