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/wpilib/ahal/DriverStation.cc b/frc971/wpilib/ahal/DriverStation.cc
index 8762203..967ebb4 100644
--- a/frc971/wpilib/ahal/DriverStation.cc
+++ b/frc971/wpilib/ahal/DriverStation.cc
@@ -13,11 +13,12 @@
 #include <string_view>
 
 #include "FRC_NetworkCommunication/FRCComm.h"
+#include "wpi/SmallString.h"
+
 #include "frc971/wpilib/ahal/AnalogInput.h"
 #include "frc971/wpilib/ahal/WPIErrors.h"
 #include "hal/HAL.h"
 #include "hal/Power.h"
-#include "wpi/SmallString.h"
 
 using namespace frc;