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/frc971/vision/target_mapper.h b/frc971/vision/target_mapper.h
index d10d6d8..cfefcc7 100644
--- a/frc971/vision/target_mapper.h
+++ b/frc971/vision/target_mapper.h
@@ -3,8 +3,9 @@
 
 #include <unordered_map>
 
-#include "aos/events/simulated_event_loop.h"
 #include "ceres/ceres.h"
+
+#include "aos/events/simulated_event_loop.h"
 #include "frc971/vision/ceres/types.h"
 #include "frc971/vision/target_map_generated.h"
 #include "frc971/vision/visualize_robot.h"