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/calibration_accumulator.cc b/frc971/vision/calibration_accumulator.cc
index f01af3c..3b0bcc6 100644
--- a/frc971/vision/calibration_accumulator.cc
+++ b/frc971/vision/calibration_accumulator.cc
@@ -2,14 +2,15 @@
 
 #include <algorithm>
 #include <limits>
-#include <opencv2/highgui/highgui.hpp>
 
 #include "Eigen/Dense"
+#include "external/com_github_foxglove_schemas/CompressedImage_schema.h"
+#include "external/com_github_foxglove_schemas/ImageAnnotations_schema.h"
+#include <opencv2/highgui/highgui.hpp>
+
 #include "aos/events/simulated_event_loop.h"
 #include "aos/network/team_number.h"
 #include "aos/time/time.h"
-#include "external/com_github_foxglove_schemas/CompressedImage_schema.h"
-#include "external/com_github_foxglove_schemas/ImageAnnotations_schema.h"
 #include "frc971/control_loops/quaternion_utils.h"
 #include "frc971/vision/charuco_lib.h"
 #include "frc971/wpilib/imu_batch_generated.h"