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/y2019/vision/serial_waiter.cc b/y2019/vision/serial_waiter.cc
index 551e179..7bffa0d 100644
--- a/y2019/vision/serial_waiter.cc
+++ b/y2019/vision/serial_waiter.cc
@@ -2,8 +2,8 @@
 
 #include <chrono>
 
-#include "y2019/jevois/serial.h"
 #include "aos/time/time.h"
+#include "y2019/jevois/serial.h"
 
 using ::aos::monotonic_clock;
 using ::y2019::jevois::open_via_terminos;