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/target_geometry.cc b/y2019/vision/target_geometry.cc
index 86ead34..e562f49 100644
--- a/y2019/vision/target_geometry.cc
+++ b/y2019/vision/target_geometry.cc
@@ -1,7 +1,8 @@
 #include <cmath>
 
-#include "aos/util/math.h"
 #include "ceres/ceres.h"
+
+#include "aos/util/math.h"
 #include "y2019/vision/target_finder.h"
 
 using ceres::CENTRAL;