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/jevois/structures.h b/y2019/jevois/structures.h
index 73705b1..85cca21 100644
--- a/y2019/jevois/structures.h
+++ b/y2019/jevois/structures.h
@@ -7,6 +7,7 @@
 #include <cstdint>
 
 #include "Eigen/Dense"
+
 #include "aos/containers/sized_array.h"
 #include "aos/time/time.h"