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/dma.cc b/frc971/wpilib/dma.cc
index a2b2d20..cff1ac1 100644
--- a/frc971/wpilib/dma.cc
+++ b/frc971/wpilib/dma.cc
@@ -4,10 +4,11 @@
 #include <cstring>
 #include <type_traits>
 
+#include "glog/logging.h"
+
 #include "frc971/wpilib/ahal/AnalogInput.h"
 #include "frc971/wpilib/ahal/DigitalSource.h"
 #include "frc971/wpilib/ahal/Encoder.h"
-#include "glog/logging.h"
 #include "hal/HAL.h"
 
 // Interface to the roboRIO FPGA's DMA features.