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/y2020/control_loops/drivetrain/drivetrain_replay.cc b/y2020/control_loops/drivetrain/drivetrain_replay.cc
index 8373258..0035fb3 100644
--- a/y2020/control_loops/drivetrain/drivetrain_replay.cc
+++ b/y2020/control_loops/drivetrain/drivetrain_replay.cc
@@ -4,6 +4,8 @@
 // replayed, so that it can then be run through the plotting tool or analyzed
 // in some other way. The original drivetrain status data will be on the
 // /original/drivetrain channel.
+#include "gflags/gflags.h"
+
 #include "aos/configuration.h"
 #include "aos/events/logging/log_reader.h"
 #include "aos/events/logging/log_writer.h"
@@ -14,7 +16,6 @@
 #include "aos/util/simulation_logger.h"
 #include "frc971/control_loops/drivetrain/drivetrain.h"
 #include "frc971/control_loops/drivetrain/trajectory_generator.h"
-#include "gflags/gflags.h"
 #include "y2020/constants.h"
 #include "y2020/control_loops/drivetrain/drivetrain_base.h"
 #include "y2020/control_loops/drivetrain/localizer.h"