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/zeroing/absolute_encoder_test.cc b/frc971/zeroing/absolute_encoder_test.cc
index ce485eb..fdc1fa0 100644
--- a/frc971/zeroing/absolute_encoder_test.cc
+++ b/frc971/zeroing/absolute_encoder_test.cc
@@ -1,9 +1,10 @@
 #include "frc971/zeroing/absolute_encoder.h"
 
-#include "frc971/zeroing/zeroing_test.h"
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
 
+#include "frc971/zeroing/zeroing_test.h"
+
 namespace frc971 {
 namespace zeroing {
 namespace testing {